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Eye, Ear, and Throat Disorders
I. STRABISMUS
A. Description
  1. Called “squint” or “lazy eye”
  2. Condition in which the eyes are not aligned
  because of lack of coordination of the
  extraocular muscles
  3. Most often results from muscle imbalance or
  paralysis of extraocular muscles but also may
  result from conditions such as a brain
  tumor, myasthenia gravis, or infection
  4. Normal in the young infant but should not be
  present after about age 4 months
B. Assessment
1. Amblyopia (reduced visual acuity) if not
  treated early
2. Permanent loss of vision if not treated early
3. Loss of binocular vision
4. Impairment of depth perception
5. Frequent headaches
6. Squinting or tilting of the head to see
C. Interventions
1. Corrective lenses may be indicated.
2. Instruct the parents regarding patching (occlusion therapy) of the
    “good” eye to strengthen the weak eye.
3. Injection of botulinum toxin (Botox) may be prescribed (injected into
    the eye muscle) as a nonsurgical intervention (treatment produces
    temporary paralysis to allow the muscles opposite the paralyzed
    muscle to
    straighten the eye).
4. Inform the parents that the injection of botulinum toxin wears off in
    about 2 months and, if successful, correction will occur.
5. Prepare for surgery to realign the weak muscles as prescribed if
    nonsurgical interventions are unsuccessful; this is performed before
    the age of 2 years.
6. Instruct the parents about the need for follow-up visits.
II. CONJUNCTIVITIS
A. Description
  1. Also is known as “pinkeye”; is an inflammation
  of the conjunctiva
  2. Conjunctivitis usually is caused by
  allergy, infection, or trauma.
  3. Bacterial or viral conjunctivitis is extremely
  contagious.
  4. Chlamydial conjunctivitis is rare in older
  children and, if diagnosed in a child who is not
  sexually active, the child should be assessed for
  possible sexual abuse.
B. Assessment
1. Itching, burning, or scratchy eyelids
2. Redness
3. Edema
4. Discharge
C. Interventions
1. Instruct in infection control measures such as good hand washing and not
      sharing towels and washcloths.
2. Administer antibiotic or antiviral eye drops or ointment as prescribed if
    infection is present.
3. Administer antihistamines as prescribed if an allergy is present.
4. Instruct the child and parents about the administration of the prescribed
    medications.
5. Instruct the parents that the child should be kept home from school or day
    care until antibiotic eye drops have been administered for 24 hours.
6. Instruct about the use of cool compresses to lessen irritation and wearing
    dark glasses for photophobia.
7. Instruct the child to avoid rubbing the eye to prevent injury.
8. Instruct the child who is wearing contact lenses to discontinue wearing
    them and to obtain new lenses to eliminate the chance of reinfection.
9. Instruct the adolescent that eye makeup should be discarded and replaced.
III. OTITIS MEDIA
A. Description
  1. Otitis media is an inflammatory disorder
  usually caused by an infection of the middle ear
  occurring as a result of a blocked eustachian
  tube, which prevents normal drainage.
  2. Otitis media is a common complication of an
  acute respiratory infection.
  3. Infants and children are more prone to otitis
  media because their eustachian tubes are
  shorter, wider, and straighter.
B. Assessment
1. Fever
2. Irritability and restlessness
3. Loss of appetite
4. Rolling of head from side to side
5. Pulling on or rubbing the ear
6. Earache or pain
7. Signs of hearing loss
8. Purulent ear drainage
9. Red, opaque, bulging, or retracting tympanic
   membrane
C. Interventions
1. Encourage fluid intake.
2. Teach the parents to feed infants in upright position, to prevent reflux.
3. Instruct the child to avoid chewing as much as possible during the acute
    period because chewing increases pain.
4. Provide local heat and have the child lie with the affected ear down.
5. Instruct the parents in the appropriate procedure to clean drainage from
    the ear with sterile cotton swabs.
6. Instruct the parents in the administration of analgesics or antipyretics such
    as acetaminophen (Tylenol) to decrease fever and pain.
7. Instruct the parents in the administration of the prescribed
    antibiotics, emphasizing that the 10- to 14-day period is necessary to
    eradicate infective organisms.
8. Instruct the parents that screening for hearing loss may be necessary.
9. Instruct the parents about the procedure for administering ear
    medications.
Administration of Medications

•   In a child younger than age 3, pull the lobe down and back.
•   In a child older than 3 years, pull the pinna up and back.
D. Myringotomy
1. Description: Insertion of tympanoplasty tubes
  into the middle ear to equalize pressure and
  keep the ear aerated
2. Postoperative interventions

a. Instruct the parents and child to keep the ears dry.
b. The client should wear earplugs while
    bathing, shampooing, and swimming,
c. Diving and submerging under water are not allowed.
d. Instruct the parents that if the tubes fall out, it is not
    an emergency, but the physician should be notified.
e. Parents can administer an analgesic such as
    acetaminophen (Tylenol) to relieve discomfort
    following insertion of tympanoplasty tubes.
f. Parents should be taught that the child should not blow
    his or her nose for 7 to 10 days after surgery.
IV. TONSILLECTOMY AND
                ADENOIDECTOMY
A. Description
   1. Tonsillitis refers to
   inflammation and infection of
   the tonsils (Fig. 36-2).
   2. Adenoiditis refers to
   inflammation and infection of
   the adenoids.
   5. Fever
   6. Cough
   7. Enlarged adenoids may
   cause nasal quality of
   speech, mouth
   breathing, hearing
   difficulty, snoring, and/or
   obstructive sleep apnea.
C. Preoperative interventions
1. Assess for signs of active infection.
2. Assess bleeding and clotting studies because
  the throat is vascular.
3. Prepare the child for a sore throat
  postoperatively, and inform the child that he
  or she will need to drink liquids.
4. Assess for any loose teeth to decrease the risk
  of aspiration during surgery.
D. Interventions postoperatively
1. Position the child prone or side-lying to facilitate drainage.
2. Have suction equipment available, but do not suction unless there is an airway
    obstruction.
3. Monitor for signs of hemorrhage (frequent swallowing may indicate hemorrhage); if
    hemorrhage occurs, turn the child to the side and notify the physician.
4. Discourage coughing or clearing the throat.
5. Provide clear, cool, noncitrus and noncarbonated fluids.
6. Avoid milk products initially because they will coat the throat.
7. Avoid red liquids, which simulate the appearance of blood if the child vomits.
8. Do not give the child any straws, forks, or sharp objects that can be put into the
    mouth.
9. Administer acetaminophen (Tylenol) for sore throat as prescribed.
10. Instruct the parents to notify the physician if bleeding, persistent earache, or fever
    occurs.
11. Instruct the parents to keep the child away from crowds until healing has occurred.
V. EPISTAXIS (NOSEBLEEDS)
A. Description
  1. The nose, especially the septum, is a highly
  vascular structure, and bleeding usually
  results from direct trauma, foreign bodies, and
  nose picking, or from mucosal inflammation.
  2. Recurrent epistaxis and severe bleeding
  may indicate an underlying disease.
B. Interventions
1. Have the child sit up and lean forward (not lying
   down).
2. Apply continuous pressure to nose with the
   thumb and forefinger for at least 10 minutes.
3. Insert cotton or wadded tissue into each
   nostril, and apply ice or a cold cloth to the bridge
   of the nose if bleeding persists.
4. Keep the child calm and quiet.
5. If bleeding cannot be controlled, packing or
   cauterization of the bleeding vessel may be
   prescribed.
Refractive Errors
1. Description
   a. Refraction is the bending of light rays; any problem associated
   with eye length or refraction can lead to refractive errors.
   b. Myopia (nearsightedness): Refractive ability of the eye is too
   strong for the eye length; images are bent and fall in front of, not
   on, the retina.
   c. Hyperopia (farsightedness): Refractive ability of the eye is too
   weak; images are focused behind the retina.
   d. Presbyopia: Loss of lens elasticity because of aging; less able to
   focus the eye for close work and images fall behind the retina.
   e. Astigmatism: Occurs because of the irregular curvature of the
   cornea; image does not focus on the retina.
2. Assessment
a. Refractive errors are diagnosed through a
process called refraction.
b. The client views an eye chart while various
lenses ofdifferent strengths are systematically
placed in front of the eye and is asked
whether the lenses sharpen or worsen the
vision.
3. Nonsurgical interventions: Eyeglasses or
  contact lenses
4. Surgical interventions
  a. Radial keratotomy: Incisions are made
  through the peripheral cornea to flatten the
  cornea, which allows the image to be focused
  closer to the retina; used to treat myopia.
Surgical interventions cont…
b. Photorefractive keratotomy: A laser beam is used to
   remove small portions of the corneal surface to
   reshape the cornea to focus an image properly on the
   retina; used to treat myopia and astigmatism.
c. Laser-assisted in-situ keratomileusis (LASIK): The
   superficial layers of the cornea are lifted as a flap, a
   laser reshapes the deeper corneal layers, and then the
   corneal flap is replaced; used to treat
   hyperopia, myopia, and astigmatism.
d. Intacs corneal ring: The shape of the cornea is changed
   by placing a flexible ring in the outer edges of the
   cornea; used to treat myopia.
C. Legally blind
1. Description: The best visual acuity with
  corrective lenses in the better eye of 20/200
  or less or visual acuity of less than 20 degrees
  of the visual field in the better eye
2. Interventions
a. When speaking to the client who has limited sight or is blind, the nurse
    uses a normal tone of voice.
b. Alert the client when approaching.
c. Orient the client to the environment.
d. Use a focal point and provide further orientation to the environment from
    that focal point.
e. Allow the client to touch objects in the room.
f. Use the clock placement of foods on the meal tray to orient the client.
g. Promote independence as much as is possible.
h. Provide radios, televisions, and clocks that give the time orally, or provide a
    braille watch.
i. When ambulating, allow the client to grasp the nurse's arm at the elbow;
    the nurse keeps his or her arm close to the body so that the client can
    detect the direction of Movement.
Interventions cont…
j. Instruct the client to remain one step behind the
    nurse when ambulating.
k. Instruct the client in the use of the cane for the
    blind, which is differentiated from other canes by
    its straight shape and white color with red tip.
l. Instruct the client that the cane is held in the
    dominant hand several inches off the floor.
m. Instruct the client that the cane sweeps the
    ground where the client's foot will be placed next
    to determine the presence of obstacles.
D. Cataracts
1. Description
    a. A cataract is an opacity of the
    lens that distorts the image
    projected onto the retina and
    that can progress to blindness.
    b. Causes include the aging
    process (senile
    cataracts), inherited (congenital
    cataracts), and injury (traumatic
    cataract s); cataract s also can
    result from another eye disease
    (secondary cataract s).
    c. Intervention is indicated when
    visual acuity has been reduced to
    a level that the client finds to be
    unacceptable or adversely affects
    his or her lifestyle.
2. Assessment
a. Blurred vision and decreased color
perception are early signs
b. Diplopia, reduced visual acuity, absence of
the red reflex, and the presence of a white
pupil are late signs. Pain or eye redness is
associated with age-related cataract
formation.
c. Loss of vision is gradual.
3. Interventions
a. Surgical removal of the lens, one eye at a time, is
performed.
b. With extracapsular extraction the lens is lifted out
without removing the lens capsule; the procedure may be
performed by phacoemulsification, in which the lens is
broken up by ultrasonic vibrations and extracted.
c. With intracapsular extraction, the lens and capsule are
removed completely.
d. A partial iridectomy may be performed with the lens
extraction to prevent acute secondary glaucoma.
e. A lens implantation may be performed at the time of the
surgical procedure.
4. Preoperative interventions
a. Instruct the client regarding the
postoperative measures to prevent or
decrease intraocular pressure.
b. Stress to the client that care after surgery
requires instillation of different types of eye
drops several times a day for 2 to 4 weeks
c. Administer eye medications
preoperatively, including mydriatics and
cycloplegics as prescribed.
5. Postoperative interventions
a. Elevate the head of the bed 30 to 45 degrees.
b. Turn the client to the back or nonoperative side.
c. Maintain an eye patch as prescribed; orient the
   client to the environment.
d. Position the client's personal belongings to the
   nonoperative side.
e. Use side rails for safety.
f. Assist with ambulation.
6. Client education
•   Avoid eye straining.                    •   If lens implantation is not
•   Avoid rubbing or placing pressure on        performed, the eye cannot
    the eyes.                                   accommodate and glasses must be
•   Avoid rapid                                 worn at all times.
    movements, straining, sneezing, coug    •   Cataract glasses act as magnifying
    hing,                                       glasses and replace central vision
•   bending, vomiting, or lifting objects       only.
    heavier than 5 lb.                      •   Because cataract glasses
•   Take measures to prevent                    magnify, objects will appear closer;
    constipation.                               therefore, the client needs to
                                                accommodate, judge distance, and
•   Follow instructions for dressing            climb stairs carefully.
    changes and prescribed eye drops        •   Contact lenses provide sharp visual
    and medications.                            acuity but dexterity is needed to
•   Wipe excess drainage or tearing with        insert them.
    a sterile wet cotton ball from the      •   Contact the physician about any
    inner to the outer canthus.                 decrease in vision, severe eye
•   Use an eye shield at bedtime.               pain, or increase in eye discharge
E. Glaucoma
1. Description
   a. A group of ocular diseases resulting in increased
   intraocular pressure
   b. Intraocular pressure is the fluid (aqueous humor)
   pressure within the eye (normal intraocular pressure is 10
   to 21 mm Hg).
   c. Increased intraocular pressure results from inadequate
   drainage of aqueous humor from the canal of Schlemm or
   overproduction of aqueous humor.
   d. The condition damages the optic nerve and can result in
   blindness.
   e. The gradual loss of visual fields may go unnoticed
   because central vision is unaffected.
2. Types
a. Acute closed-angle or narrow-angle glaucoma
results from obstruction to outflow of aqueous humor.
b. Chronic closed-angle glaucoma follows an untreated
attack of acute closed-angle glaucoma.
c. Chronic open-angle glaucoma results from
overproduction or obstruction to the outflow of
aqueous humor.
d. Acute glaucoma is a rapid onset of intraocular
pressure higher than 50 to 70 mm Hg.
e. Chronic glaucoma is a slow, progressive, gradual
onset of intraocular pressure higher than 30 to 50 mm
Hg.
3. Assessment
a. Early signs include diminished
accommodation and increased intraocular
pressure.
b. Late signs include loss of peripheral
vision, decreased visual acuity not correctable
with glasses, halos around lights; headache or
eye pain occurs with acute closed-angle
glaucoma.
4. Interventions for acute glaucoma
a. Treat acute glaucoma as a medical
emergency.
b. Administer medications as prescribed to
lower intraocular pressure.
c. Prepare the client for peripheral
iridectomy, which allows aqueous humor to
flow from the posterior to the anterior
chamber.
5. Interventions for chronic glaucoma
a. Instruct the client on the importance     f. Instruct the client that when maximal
     of medications (miotics) to constrict        medical therapy has failed to halt the
     the pupils, (carbonic anhydrase              progression of visual field loss and
     inhibitors) to decrease the                  optic nerve damage, surgery will be
     production of aqueous humor, and b-          recommended.
     blockers to decrease the production     g. Prepare the client for trabeculoplasty
     of aqueous humor and intraocular             as prescribed to facilitate aqueous
     pressure.                                    humor drainage.
b. Instruct the client of the need for       h. Prepare the client for trabeculectomy
     lifelong medication use.                     as prescribed, which allows drainage
c. Instruct the client to wear a Medic            of aqueous humor into the
     Alert bracelet.                              conjunctival spaces by the creation of
d. Instruct the client to avoid                   an opening.
     anticholinergic medications.
e. Instruct the client to report eye
     pain, halos around the eyes, and
     changes in vision to the physician.
F. Retinal detachment
1. Description
   a. Detachment or separation of the retina from the
   epithelium
   b. Retinal detachment occurs when the layers of the
   retina separate because of the accumulation of fluid
   between them, or when both retinal layers elevate
   away from the choroid as a result of a tumor.
   c. Partial detachment becomes complete if untreated.
   d. When detachment becomes complete, blindness
   occurs.
2. Assessment
a. Flashes of light
b. Floaters or black spots (signs of bleeding)
c. Increase in blurred vision
d. Sense of a curtain being drawn over the eye
e. Loss of a portion of the visual field
3. Immediate interventions
a. Provide bed rest.
b. Cover both eyes with patches as prescribed to
prevent further detachment.
c. Speak to the client before approaching.
d. Position the client's head as prescribed.
e. Protect the client from injury.
f. Avoid jerky head movements.
g. Minimize eye stress.
h. Prepare the client for a surgical procedure as
prescribed.
4. Surgical procedures
a. Draining fluid from the subretinal space so that
      the retina can return to the normal position
b. Sealing retinal breaks by cryosurgery, a cold
      probe applied to the sclera, to stimulate an
      inflammatory response leading to adhesions
c. Diathermy, the use of an electrode needle and
      heat through the sclera, to stimulate an
      inflammatory response
d. Laser therapy, to stimulate an inflammatory
      response and seal small retinal tears before
      the detachment occurs
e. Scleral buckling, to hold the choroid and retina
      together with a splint until scar tissue
      forms, closing the tear
f. Insertion of gas or silicone oil to promote
      reattachment; these agents float against the
      retina to hold it in place until healing occurs.
5. Postoperative interventions
a. Maintain eye patches as               h. Administer eye medications as prescribed.
    prescribed.                          i. Assist the client with activities of daily living.
                                         j. Avoid sudden head movements or anything
b. Monitor for hemorrhage.                     that increases intraocular pressure.
c. Prevent nausea and vomiting and       k. Instruct the client to limit reading for 3 to 5
    monitor for restlessness, which            weeks.
    can cause hemorrhage                 l. Instruct the client to avoid
                                               squinting, straining and
d. Monitor for sudden, sharp eye               constipation, lifting heavy objects, and
    pain (notify the physician).               bending from the waist.
e. Encourage deep breathing but          m. Instruct the client to wear dark glasses
                                               during the day and an eye patch at night.
    avoid coughing.
                                         n. Encourage follow-up care because of the
f. Provide bed rest for 1 to 2 days as         danger of recurrence or occurrence in the
    prescribed.                                other eye.
g. Position the client as prescribed
    (positioning depends on the
    location of the detachment).
G. Macular degeneration
1. A deterioration of the macula, the area of central vision
2. Can be atrophic (age-related or dry) or exudative (wet)
3. Age-related: Caused by gradual blocking of retinal
   capillaries leading to an ischemic and necrotic macula;
   rods and cones photoreceptors die.
4. Exudative: Serous detachment of pigment epithelium
   in the macula occurs; fluid and blood collect under the
   macula, resulting in scar formation and visual
   distortion.
5. Interventions are aimed at maximizing the remaining
   vision.
6. Assessment
a. A decline in central vision
b. Blurred vision and distortion
7. Interventions
a. Initiate strategies to assist in maximizing
   remaining vision and maintaining
   independence.
b. Provide referrals to community organizations.
c. Laser therapy or photodynamic therapy may
   be prescribed to seal the leaking blood vessels
   in or near the macula.
Contusions
1. Description
  a. Bleeding into the soft tissue as a result of an
  injury.
  b. A contusion causes a black eye; the
  discoloration disappears in about 10 days.
  c. Pain, photophobia, edema, and diplopia
  may occur.
2. Interventions
a. Place ice on the eye immediately.
b. Instruct the client to receive a thorough eye
examination.
Foreign bodies
1. Description: An object such as dust or dirt
  that enters the eye and causes irritation
2. Interventions
a. Have the client look upward, expose the lower
   lid, wet a cotton-tipped applicator with sterile
   normal saline, gently twist the swab over the
   particle, and remove it.
b. If the particle cannot be seen, have the client
   look downward, place a cotton applicator
   horizontally on the outer surface of the upper eye
   lid, grasp the lashes, and pull the upper lid
   outward and over the cotton applicator; if the
   particle is seen, gently twist a swab over it to
   remove.
Penetrating objects
1. Description: An eye injury in which an object
  penetrates the eye
2. Interventions
a. Never remove the object because it may be holding
    ocular structures in place; the object must be removed
    by the physician.
b. Cover the object with a cup.
c. Do not allow the client to bend over.
d. Do not place pressure on the eye.
e. Client is to be seen by a physician immediately.
f. X-rays and CT scans of the orbit are usually obtained.
g. Magnetic resonance imaging (MRI) is contraindicated
    because of the possibility of metal-containing projectile
    movement during the procedure.
Chemical burns
1. Description: An eye injury in which a caustic
  substance enters the eye
2. Interventions
a. Treatment should begin immediately.
b. Flush the eyes at the scene of the injury with water for at least 15 to
    20 minutes.
c. At the scene of the injury, obtain a sample of the chemical involved.
d. At the emergency room, the eye is irrigated with normal saline
    solution or an ophthalmic irrigation solution for at least 10 minutes.
e. The solution is directed across the cornea and toward the lateral
    canthus.
f. Prepare for visual acuity assessment.
g. Apply an antibiotic ointment as prescribed.
h. Cover the eye with a patch as prescribed.
DISORDERS OF THE EAR
A. Risk factors related to ear disorders
•   Aging process
•   Infection
•   Medications
•   Ototoxicity
•   Trauma
•   Tumors
B. Conductive hearing loss
1. Description
  a. Conductive hearing loss occurs when sound
  waves are blocked to the inner ear fibers
  because of external or middle ear disorders.
  b. Disorders often can be corrected with no
  damage to hearingor minimal permanent
  hearing loss.
2. Causes
a. Any inflammatory process or obstruction of
   the external or middle ear
b. Tumors
c. Otosclerosis
d. A buildup of scar tissue on the ossicles from
   previous middle ear surgery
C. Sensorineural hearing loss
1. Description
  a. Sensorineural hearing loss is a pathological
  process of the inner ear or of the sensory
  fibers that lead to the cerebral cortex.
  b. Sensorineural hearing loss is often
  permanent, and measures must be taken to
  reduce further damage or to attempt to
  amplify sound as a means of improving
  hearing to some degree.
2. Causes
a. Damage to the inner     f. Inherited disorders
   ear structures          g. Metabolic and
b. Damage to the eighth        circulatory disorders
   cranial nerve           h. Infections
c. Prolonged exposure to   i. Surgery
   loud noise              j. Menière's syndrome
d. Medications             k. Diabetes mellitus
e. Trauma                  l. Myxedema
D. Mixed hearing loss
1. Mixed hearing loss also is known as
  conductive-sensorineural hearing loss.
2. Client has sensorineural and conductive
  hearing loss.
E. Signs of hearing loss and facilitating
             communication
•   Signs of Hearing Loss
•   Frequently asking others to repeat statements
•   Straining to hear
•   Turning head or leaning forward to favor one ear
•   Shouting in conversation
•   Ringing in the ears
•   Failing to respond when not looking in the direction of the sound
•   Answering questions incorrectly
•   Raising the volume of the television or radio
•   Avoiding large groups
•   Better understanding of speech when in small groups
•   Withdrawing from social interactions
Facilitation of Communication

•   Using written words if the client is able to     •   Validating with the client the understanding
    see, read, and write                                 of statements made by asking the client to
•   Providing plenty of light in the room                repeat what was said
•   Getting the attention of the client before       •   Reading lips
    beginning to speak                               •   Encouraging the client to wear glasses when
•   Facing the client when speaking                      talking to someone to improve vision for lip
•   Talking in a room without distracting noises         reading
•   Moving close to the client and speaking          •   Using sign language, which combines speech
    slowly and clearly                                   with hand movements that signify
                                                         letters, words, or phrases
•   Keeping hands and other objects away from        •   Using telephone amplifiers
    the mouth when talking to the client
•   Talking in normal volume and at a lower pitch    •   Flashing lights that are activated by ringing of
    because shouting is not                              the telephone or doorbell
•   helpful and higher frequencies are less easily   •   Specially trained dogs that help the client be
    heard                                                aware of sound and alert the client to
                                                         potential danger
•   Rephrasing sentences and repeating
    information
H. Presbycusis
1. Description
   a. Presbycusis is a sensorineural hearing loss
   associated with aging.
   b. Presbycusis leads to degeneration or atrophy
   of the ganglion cells in the cochlea and a loss of
   elasticity of the basilar membranes.
   c. Presbycusis leads to compromise of the
   vascular supply to the inner ear, with changes in
   several areas of the ear structure.
2. Assessment
a. Hearing loss is gradual and bilateral.
b. Client states that he or she has no problem
   with hearing but cannot understand what the
   words are.
c. Client thinks that the speaker is mumbling.
I. External otitis
1. Description
    a. External otitis is an infective inflammatory or allergic response involving
    the structure of the external auditory canal or auricles.
    b. An irritating or infective agent comes into contact with the epithelial
    layer of the external ear.
    c. Contact leads to an allergic response or signs and symptoms of an
    infection.
    d. The skin becomes red, swollen, and tender to touch on movement.
    e. The extensive swelling of the canal can lead to conductive hearing loss
    because of obstruction.
    f. External otitis is more common in children; it is termed swimmer's ear
    and occurs more often in hot, humid environments.
    g. Prevention includes the elimination of irritating or infecting agents
2. Assessment
a. Pain
b. Itching
c. Plugged feeling in the ear
d. Redness and edema
e. Exudate
f. Hearing loss
3. Interventions
a. Apply heat locally for 20 minutes three times a day.
b. Encourage rest to assist in reducing pain.
c. Administer antibiotics or corticosteroids as prescribed.
d. Administer analgesics such as aspirin or acetaminophen (Tylenol) for
     the pain as prescribed.
e. Instruct the client that the ears should be kept clean and dry.
f. Instruct the client to use earplugs for swimming.
g. Instruct the client that cotton-tipped applicators should not be used
     in dry ears because their use can lead to trauma to the canal.
h. Instruct the client that irritating agents such as hair products or
     headphones should be discontinued.
K. Chronic otitis media
1. Description
   a. Chronic otitis media is a chronic infective,
   inflammatory,
   or allergic response involving the structure of the
   middle ear.
   b. Surgical treatment is necessary to restore hearing.
   c. The type of surgery can vary; it includes a simple
   reconstruction of the tympanic membrane, a
   myringoplasty, or replacement of the ossicles within
   the middle ear.
   d. A tympanoplasty, reconstruction of the middle ear,
   may be attempted to improve conductive hearing loss.
2. Preoperative interventions
a. Administer antibiotic drops as prescribed.
b. Clean the ear of debris as prescribed; irrigate the ear
with a solution of equal parts of vinegar and sterile
water as prescribed to restore the normal pH of the
ear.
c. Instruct the client to avoid persons with upper
respiratory infections.
d. Instruct the client to obtain adequate rest, eat a
balanced diet, and drink adequate fluids.
e. Instruct the client in deep breathing and coughing;
forceful coughing, which increases pressure in the
middle ear, is to be avoided postoperatively.
3. Postoperative interventions
a. Inform the client that initial hearing after surgery
   is diminished because of the packing in the ear
   canal; hearing improvement will occur after the
   ear canal packing is removed.
b. Keep the dressing clean and dry.
c. Keep the client flat, with the operative ear up for
   at least 12 hours.
d. Administer antibiotics as prescribed.
e. Instruct the client that he or she may return to
   work in about 3 weeks postoperatively as
   prescribed.
L. Mastoiditis
1. Description
  a. Mastoiditis may be acute or chronic and
  results from untreated or inadequately
  treated chronic or acute otitis media.
  b. The pain is not relieved by myringotomy.
2. Assessment
a. Swelling behind the ear and pain with minimal
   movement of the head
b. Cellulitis on the skin or external scalp over the
   mastoid process
c. A reddened, dull, thick, immobile tympanic
   membrane, with or without perforation
d. Tender and enlarged postauricular lymph nodes
e. Low-grade fever
f. Malaise
g. Anorexia
3. Interventions
a. Prepare the client for surgical removal of infected
   material.
b. Monitor for complications.
c. Simple or modified radical mastoidectomy with
   tympanoplasty is the most common treatment.
d. Once tissue that is infected is removed, the
   tympanoplasty is performed to reconstruct the
   ossicles and tympanic membranes in an attempt
   to restore normal hearing.
4. Complications
a. Damage to the abducens and facial cranial nerves
b. Damage is exhibited by inability to look laterally
   (cranial nerve VI, abducens) and a drooping of
   the mouth on the affected side (cranial nerve
   VII, facial).
c. Meningitis
d. Brain abscess
e. Chronic purulent otitis media
f. Wound infections
g. Vertigo, if the infection spreads into the labyrinth
5. Postoperative interventions
a. Monitor for dizziness.
b. Monitor for signs of meningitis, as evidenced by a stiff neck and
    vomiting.
c. Prepare for a wound dressing change 24 hours postoperatively.
d. Monitor the surgical incision for edema, drainage, and redness.
e. Position the client flat with the operative side up.
f. Restrict the client to bed with bedside commode privileges for 24
    hours as prescribed.
g. Assist the client with getting out of bed to prevent falling or injuries
    from dizziness.
h. With reconstruction of the ossicles via a graft, take precautions to
    prevent dislodging of the graft.
M. Otosclerosis
1. Description
a. Otosclerosis is a disease of the labyrinthine capsule of the middle ear that results
     in a bony overgrowth of the tissue surrounding the ossicles.
b. Otosclerosis causes the development of irregular areas of new bone formation and
     causes the fixation of the bones.
c. Stapes fixation leads to a conductive hearing loss.
d. If the disease involves the inner ear, sensorineural hearing loss is present.
e. To have bilateral involvement is not uncommon, although hearing loss may be
     worse in one ear.
f. The cause is unknown, although it is thought to have a familial tendency.
g. Nonsurgical intervention promotes the improvement of hearing through
     amplification.
h. Surgical intervention involves removal of the bony growth causing the hearing loss.
i. A partial stapedectomy or complete stapedectomy with prosthesis (fenestration)
     may be performed surgically.
2. Assessment
a. Slowly progressing conductive hearing loss
b. Bilateral hearing loss
c. A ringing or roaring type of constant tinnitus
d. Loud sounds heard in the ear when chewing
e. Pinkish discoloration (Schwartze's sign) of the
   tympanic membrane, which indicates vascular
   changes within the ear.
f. Negative Rinne test
g. Weber's test shows lateralization of sound to the
   ear with the most conductive hearing loss.
N. Fenestration
1. Description
a. Fenestration is removal of the stapes, with a
   small hole drilled in the footplate; a prosthesis
   is connected between the incus and footplate.
b. Sounds cause the prosthesis to vibrate in the
   same manner as the stapes.
c. Complications include complete hearing
   loss, prolonged vertigo, infection, or facial
   nerve damage.
2. Preoperative interventions
a. Instruct the client in measures to prevent
   middle ear or external ear infections.
b. Instruct the client to avoid excessive nose
   blowing.
c. Instruct the client not to clean the ear canal
   with cotton-tipped applicators and to avoid
   trauma or injury to the ear canal.
3. Postoperative interventions
a. Inform the client that hearing is initially worse after the surgical procedure
    because of swelling and that no noticeable improvement in hearing may
    occur for as long as 6 weeks.
b. Inform the client that the Gelfoam ear packing interferes with hearing but
    is used to decrease bleeding.
c. Assist with ambulating during the first 1 to 2 days after surgery.
d. Provide side rails when the client is in bed.
e. Administer antibiotic, antivertiginous, and pain medications as prescribed.
f. Assess for facial nerve damage, weakness, changes in tactile sensation and
    taste sensation, vertigo, nausea, and vomiting.
g. Instruct the client to move the head slowly when changing positions to
    prevent vertigo.
h. Instruct the client to avoid persons with upper respiratory tract infections.
i. Instruct the client to avoid showering and getting the
    head and wound wet.
j. Instruct the client to avoid using small objects (cotton-
    tipped applicators) to clean the external ear canal.
k. Instruct the client to avoid rapid extreme changes
    inpressure caused by quick head
    movements, sneezing, nose blowing, straining, and
    changes in altitude.
l. Instruct the client to avoid changes in middle ear
    pressure because they could dislodge the graft or
    prosthesis.
O. Labyrinthitis
1. Description: Infection of the labyrinth that
  occurs as a complication of acute or chronic
  otitis media
2. May result from growth of a cholesteatoma—
  benign overgrowth of squamous cell
  epithelium
3. Assessment
a. Hearing loss that may be permanent on the
   affected side
b. Tinnitus
c. Spontaneous nystagmus to the affected side
d. Vertigo
e. Nausea and vomiting
4. Interventions
a. Monitor for signs of meningitis, the most common
    complication, as evidenced by headache, stiff neck, and
    lethargy.
b. Administer systemic antibiotics as prescribed.
c. Advise the client to rest in bed in a darkened room.
d. Administer antiemetics and antivertiginous
    medications as prescribed.
e. Instruct the client that the vertigo subsides as the
    inflammation resolves.
f. Instruct the client that balance problems that persist
    may require gait training through physical therapy.
P. Menière's syndrome
1. Description
   a. Menière's syndrome is also called endolymphatic
   hydrops; it refers to dilation of the endolymphatic system
   by overproduction or decreased reabsorption of
   endolymphatic fluid.
   b. The syndrome is characterized by tinnitus, unilateral
   sensorineural hearing loss, and vertigo.
   c. Symptoms occur in attacks and last for several days, and
   the client becomes totally incapacitated during the attacks.
   d. Initial hearing loss is reversible but as the frequency of
   attacks continues, hearing loss becomes permanent.
   e. Repeated damage to the cochlea caused by increased
   fluid pressure leads to permanent hearing loss.
2. Causes
a. Any factor that increases endolymphatic
secretion in the labyrinth
b. Viral and bacterial infections
c. Allergic reactions
d. Biochemical disturbances
e. Vascular disturbance, producing changes in the
microcirculation in the labyrinth
f. Long-term stress may be a contributing factor.
3. Assessment
a. Feelings of fullness in the ear
b. Tinnitus, as a continuous low-pitched roar or humming sound, that
    is present much of the time but worsens just before and during
    severe attacks
c. Hearing loss that is worse during an attack
d. Vertigo, as periods of whirling, that might cause the client to fall to
    the ground
e. Vertigo that is so intense that even while lying down, the client
    holds the bed or ground in an attempt to prevent the whirling
f. Nausea and vomiting
g. Nystagmus
h. Severe headaches
4. Nonsurgical interventions
a. Prevent injury during vertigo attacks.
b. Provide bed rest in a quiet environment.
c. Provide assistance with walking.
d. Instruct the client to move the head slowly to prevent worsening of the
     vertigo.
e. Initiate sodium and fluid restrictions as prescribed.
f. Instruct the client to stop smoking.
g. Administer nicotinic acid (niacin) as prescribed for its vasodilatory effect.
h. Administer antihistamines as prescribed to reduce the production of
     histamine and the inflammation.
i. Administer antiemetics as prescribed.
j. Administer tranquilizers and sedatives as prescribed to calm the
     client, allow the client to rest, and control vertigo, nausea, and vomiting.
k. Mild diuretics may be prescribed to decrease endolymph volume
5. Surgical interventions
a. Surgery is performed when medical therapy is
   ineffective and the functional level of the client
   has decreased significantly.
b. Endolymphatic drainage and insertion of a shunt
   may be performed early in the course of the
   disease to assist with the drainage of excess
   fluids.
c. A resection of the vestibular nerve or total
   removal of the labyrinth or a labyrinthectomy
   may be performed.
6. Postoperative interventions
a. Assess packing and dressing on the ear.
b. Speak to the client on the side of the unaffected
   ear.
c. Perform neurological assessments.
d. Maintain side rails.
e. Assist with ambulating.
f. Encourage the client to use a bedside commode
   rather than ambulating to the bathroom.
g. Administer antivertiginous and antiemetic
   medications as prescribed.
Trauma
1. Description
   a. The tympanic membrane has a limited stretching ability and gives
   way under high pressure.
   b. Foreign objects placed in the external canal may exert pressure
   on the tympanic membrane and cause perforation.
   c. If the object continues through the canal, the bony structure of
   the stapes, incus, and malleus may be damaged.
   d. A blunt injury to the basal skull and ear can damage the middle
   ear structures through fractures extending to the middle ear.
   e. Excessive nose blowing and rapid changes of pressure that occur
   with nonpressurized air flights can increase pressure in the middle
   ear.
   f. Depending on the damage to the ossicles, hearing loss may or
   may not return.
2. Interventions
a. Tympanic membrane perforations usually heal
  within 24 hours.
b. Surgical reconstruction of the ossicles and
  tympanic membrane through tympanoplasty
  or myringoplasty may be performed to
  improve hearing.
S. Cerumen and foreign bodies
1. Description
  a. Cerumen, or wax, is the most common
  cause of impacted canals.
  b. Foreign bodies can include
  vegetables, beads, pencil erasers, insects, and
  other objects.
2. Assessment
a. Sensation of fullness in the ear with or
  without hearing loss
b. Pain, itching, or bleeding
3. Cerumen
a. Removal of wax by irrigation is a slow process.
b. Irrigation is contraindicated in clients with a
   history of tympanic membrane perforation or
   otitis media.
c. To soften cerumen, add three drops of glycerin or
   mineral oil to the ear at bedtime, and three drops
   of hydrogen peroxide twice daily as prescribed.
d. After several days, irrigate the ear.
e. The maximum amount of solution that should be
   used for irrigation is 50 to 70 mL.
4. Foreign bodies
a. With a foreign object of vegetable
   matter, irrigation is used with care because this
   material expands with hydration.
b. Insects are killed before removal, unless they can
   be coaxed out by flashlight or a humming noise.
c. Mineral oil or diluted alcohol is instilled to
   suffocate the insect, which then is removed using
   ear forceps.
d. Use a small ear forceps to remove the object and
   avoid pushing the object farther into the canal
   and damaging the tympanic membrane.

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Eye, ear, and throat disorders

  • 1. Eye, Ear, and Throat Disorders
  • 2. I. STRABISMUS A. Description 1. Called “squint” or “lazy eye” 2. Condition in which the eyes are not aligned because of lack of coordination of the extraocular muscles 3. Most often results from muscle imbalance or paralysis of extraocular muscles but also may result from conditions such as a brain tumor, myasthenia gravis, or infection 4. Normal in the young infant but should not be present after about age 4 months
  • 3. B. Assessment 1. Amblyopia (reduced visual acuity) if not treated early 2. Permanent loss of vision if not treated early 3. Loss of binocular vision 4. Impairment of depth perception 5. Frequent headaches 6. Squinting or tilting of the head to see
  • 4. C. Interventions 1. Corrective lenses may be indicated. 2. Instruct the parents regarding patching (occlusion therapy) of the “good” eye to strengthen the weak eye. 3. Injection of botulinum toxin (Botox) may be prescribed (injected into the eye muscle) as a nonsurgical intervention (treatment produces temporary paralysis to allow the muscles opposite the paralyzed muscle to straighten the eye). 4. Inform the parents that the injection of botulinum toxin wears off in about 2 months and, if successful, correction will occur. 5. Prepare for surgery to realign the weak muscles as prescribed if nonsurgical interventions are unsuccessful; this is performed before the age of 2 years. 6. Instruct the parents about the need for follow-up visits.
  • 5. II. CONJUNCTIVITIS A. Description 1. Also is known as “pinkeye”; is an inflammation of the conjunctiva 2. Conjunctivitis usually is caused by allergy, infection, or trauma. 3. Bacterial or viral conjunctivitis is extremely contagious. 4. Chlamydial conjunctivitis is rare in older children and, if diagnosed in a child who is not sexually active, the child should be assessed for possible sexual abuse.
  • 6. B. Assessment 1. Itching, burning, or scratchy eyelids 2. Redness 3. Edema 4. Discharge
  • 7. C. Interventions 1. Instruct in infection control measures such as good hand washing and not sharing towels and washcloths. 2. Administer antibiotic or antiviral eye drops or ointment as prescribed if infection is present. 3. Administer antihistamines as prescribed if an allergy is present. 4. Instruct the child and parents about the administration of the prescribed medications. 5. Instruct the parents that the child should be kept home from school or day care until antibiotic eye drops have been administered for 24 hours. 6. Instruct about the use of cool compresses to lessen irritation and wearing dark glasses for photophobia. 7. Instruct the child to avoid rubbing the eye to prevent injury. 8. Instruct the child who is wearing contact lenses to discontinue wearing them and to obtain new lenses to eliminate the chance of reinfection. 9. Instruct the adolescent that eye makeup should be discarded and replaced.
  • 8. III. OTITIS MEDIA A. Description 1. Otitis media is an inflammatory disorder usually caused by an infection of the middle ear occurring as a result of a blocked eustachian tube, which prevents normal drainage. 2. Otitis media is a common complication of an acute respiratory infection. 3. Infants and children are more prone to otitis media because their eustachian tubes are shorter, wider, and straighter.
  • 9. B. Assessment 1. Fever 2. Irritability and restlessness 3. Loss of appetite 4. Rolling of head from side to side 5. Pulling on or rubbing the ear 6. Earache or pain 7. Signs of hearing loss 8. Purulent ear drainage 9. Red, opaque, bulging, or retracting tympanic membrane
  • 10. C. Interventions 1. Encourage fluid intake. 2. Teach the parents to feed infants in upright position, to prevent reflux. 3. Instruct the child to avoid chewing as much as possible during the acute period because chewing increases pain. 4. Provide local heat and have the child lie with the affected ear down. 5. Instruct the parents in the appropriate procedure to clean drainage from the ear with sterile cotton swabs. 6. Instruct the parents in the administration of analgesics or antipyretics such as acetaminophen (Tylenol) to decrease fever and pain. 7. Instruct the parents in the administration of the prescribed antibiotics, emphasizing that the 10- to 14-day period is necessary to eradicate infective organisms. 8. Instruct the parents that screening for hearing loss may be necessary. 9. Instruct the parents about the procedure for administering ear medications.
  • 11. Administration of Medications • In a child younger than age 3, pull the lobe down and back. • In a child older than 3 years, pull the pinna up and back.
  • 12. D. Myringotomy 1. Description: Insertion of tympanoplasty tubes into the middle ear to equalize pressure and keep the ear aerated
  • 13. 2. Postoperative interventions a. Instruct the parents and child to keep the ears dry. b. The client should wear earplugs while bathing, shampooing, and swimming, c. Diving and submerging under water are not allowed. d. Instruct the parents that if the tubes fall out, it is not an emergency, but the physician should be notified. e. Parents can administer an analgesic such as acetaminophen (Tylenol) to relieve discomfort following insertion of tympanoplasty tubes. f. Parents should be taught that the child should not blow his or her nose for 7 to 10 days after surgery.
  • 14. IV. TONSILLECTOMY AND ADENOIDECTOMY A. Description 1. Tonsillitis refers to inflammation and infection of the tonsils (Fig. 36-2). 2. Adenoiditis refers to inflammation and infection of the adenoids. 5. Fever 6. Cough 7. Enlarged adenoids may cause nasal quality of speech, mouth breathing, hearing difficulty, snoring, and/or obstructive sleep apnea.
  • 15. C. Preoperative interventions 1. Assess for signs of active infection. 2. Assess bleeding and clotting studies because the throat is vascular. 3. Prepare the child for a sore throat postoperatively, and inform the child that he or she will need to drink liquids. 4. Assess for any loose teeth to decrease the risk of aspiration during surgery.
  • 16. D. Interventions postoperatively 1. Position the child prone or side-lying to facilitate drainage. 2. Have suction equipment available, but do not suction unless there is an airway obstruction. 3. Monitor for signs of hemorrhage (frequent swallowing may indicate hemorrhage); if hemorrhage occurs, turn the child to the side and notify the physician. 4. Discourage coughing or clearing the throat. 5. Provide clear, cool, noncitrus and noncarbonated fluids. 6. Avoid milk products initially because they will coat the throat. 7. Avoid red liquids, which simulate the appearance of blood if the child vomits. 8. Do not give the child any straws, forks, or sharp objects that can be put into the mouth. 9. Administer acetaminophen (Tylenol) for sore throat as prescribed. 10. Instruct the parents to notify the physician if bleeding, persistent earache, or fever occurs. 11. Instruct the parents to keep the child away from crowds until healing has occurred.
  • 17. V. EPISTAXIS (NOSEBLEEDS) A. Description 1. The nose, especially the septum, is a highly vascular structure, and bleeding usually results from direct trauma, foreign bodies, and nose picking, or from mucosal inflammation. 2. Recurrent epistaxis and severe bleeding may indicate an underlying disease.
  • 18. B. Interventions 1. Have the child sit up and lean forward (not lying down). 2. Apply continuous pressure to nose with the thumb and forefinger for at least 10 minutes. 3. Insert cotton or wadded tissue into each nostril, and apply ice or a cold cloth to the bridge of the nose if bleeding persists. 4. Keep the child calm and quiet. 5. If bleeding cannot be controlled, packing or cauterization of the bleeding vessel may be prescribed.
  • 19. Refractive Errors 1. Description a. Refraction is the bending of light rays; any problem associated with eye length or refraction can lead to refractive errors. b. Myopia (nearsightedness): Refractive ability of the eye is too strong for the eye length; images are bent and fall in front of, not on, the retina. c. Hyperopia (farsightedness): Refractive ability of the eye is too weak; images are focused behind the retina. d. Presbyopia: Loss of lens elasticity because of aging; less able to focus the eye for close work and images fall behind the retina. e. Astigmatism: Occurs because of the irregular curvature of the cornea; image does not focus on the retina.
  • 20. 2. Assessment a. Refractive errors are diagnosed through a process called refraction. b. The client views an eye chart while various lenses ofdifferent strengths are systematically placed in front of the eye and is asked whether the lenses sharpen or worsen the vision.
  • 21. 3. Nonsurgical interventions: Eyeglasses or contact lenses 4. Surgical interventions a. Radial keratotomy: Incisions are made through the peripheral cornea to flatten the cornea, which allows the image to be focused closer to the retina; used to treat myopia.
  • 22. Surgical interventions cont… b. Photorefractive keratotomy: A laser beam is used to remove small portions of the corneal surface to reshape the cornea to focus an image properly on the retina; used to treat myopia and astigmatism. c. Laser-assisted in-situ keratomileusis (LASIK): The superficial layers of the cornea are lifted as a flap, a laser reshapes the deeper corneal layers, and then the corneal flap is replaced; used to treat hyperopia, myopia, and astigmatism. d. Intacs corneal ring: The shape of the cornea is changed by placing a flexible ring in the outer edges of the cornea; used to treat myopia.
  • 23. C. Legally blind 1. Description: The best visual acuity with corrective lenses in the better eye of 20/200 or less or visual acuity of less than 20 degrees of the visual field in the better eye
  • 24. 2. Interventions a. When speaking to the client who has limited sight or is blind, the nurse uses a normal tone of voice. b. Alert the client when approaching. c. Orient the client to the environment. d. Use a focal point and provide further orientation to the environment from that focal point. e. Allow the client to touch objects in the room. f. Use the clock placement of foods on the meal tray to orient the client. g. Promote independence as much as is possible. h. Provide radios, televisions, and clocks that give the time orally, or provide a braille watch. i. When ambulating, allow the client to grasp the nurse's arm at the elbow; the nurse keeps his or her arm close to the body so that the client can detect the direction of Movement.
  • 25. Interventions cont… j. Instruct the client to remain one step behind the nurse when ambulating. k. Instruct the client in the use of the cane for the blind, which is differentiated from other canes by its straight shape and white color with red tip. l. Instruct the client that the cane is held in the dominant hand several inches off the floor. m. Instruct the client that the cane sweeps the ground where the client's foot will be placed next to determine the presence of obstacles.
  • 26. D. Cataracts 1. Description a. A cataract is an opacity of the lens that distorts the image projected onto the retina and that can progress to blindness. b. Causes include the aging process (senile cataracts), inherited (congenital cataracts), and injury (traumatic cataract s); cataract s also can result from another eye disease (secondary cataract s). c. Intervention is indicated when visual acuity has been reduced to a level that the client finds to be unacceptable or adversely affects his or her lifestyle.
  • 27. 2. Assessment a. Blurred vision and decreased color perception are early signs b. Diplopia, reduced visual acuity, absence of the red reflex, and the presence of a white pupil are late signs. Pain or eye redness is associated with age-related cataract formation. c. Loss of vision is gradual.
  • 28. 3. Interventions a. Surgical removal of the lens, one eye at a time, is performed. b. With extracapsular extraction the lens is lifted out without removing the lens capsule; the procedure may be performed by phacoemulsification, in which the lens is broken up by ultrasonic vibrations and extracted. c. With intracapsular extraction, the lens and capsule are removed completely. d. A partial iridectomy may be performed with the lens extraction to prevent acute secondary glaucoma. e. A lens implantation may be performed at the time of the surgical procedure.
  • 29. 4. Preoperative interventions a. Instruct the client regarding the postoperative measures to prevent or decrease intraocular pressure. b. Stress to the client that care after surgery requires instillation of different types of eye drops several times a day for 2 to 4 weeks c. Administer eye medications preoperatively, including mydriatics and cycloplegics as prescribed.
  • 30. 5. Postoperative interventions a. Elevate the head of the bed 30 to 45 degrees. b. Turn the client to the back or nonoperative side. c. Maintain an eye patch as prescribed; orient the client to the environment. d. Position the client's personal belongings to the nonoperative side. e. Use side rails for safety. f. Assist with ambulation.
  • 31. 6. Client education • Avoid eye straining. • If lens implantation is not • Avoid rubbing or placing pressure on performed, the eye cannot the eyes. accommodate and glasses must be • Avoid rapid worn at all times. movements, straining, sneezing, coug • Cataract glasses act as magnifying hing, glasses and replace central vision • bending, vomiting, or lifting objects only. heavier than 5 lb. • Because cataract glasses • Take measures to prevent magnify, objects will appear closer; constipation. therefore, the client needs to accommodate, judge distance, and • Follow instructions for dressing climb stairs carefully. changes and prescribed eye drops • Contact lenses provide sharp visual and medications. acuity but dexterity is needed to • Wipe excess drainage or tearing with insert them. a sterile wet cotton ball from the • Contact the physician about any inner to the outer canthus. decrease in vision, severe eye • Use an eye shield at bedtime. pain, or increase in eye discharge
  • 32. E. Glaucoma 1. Description a. A group of ocular diseases resulting in increased intraocular pressure b. Intraocular pressure is the fluid (aqueous humor) pressure within the eye (normal intraocular pressure is 10 to 21 mm Hg). c. Increased intraocular pressure results from inadequate drainage of aqueous humor from the canal of Schlemm or overproduction of aqueous humor. d. The condition damages the optic nerve and can result in blindness. e. The gradual loss of visual fields may go unnoticed because central vision is unaffected.
  • 33. 2. Types a. Acute closed-angle or narrow-angle glaucoma results from obstruction to outflow of aqueous humor. b. Chronic closed-angle glaucoma follows an untreated attack of acute closed-angle glaucoma. c. Chronic open-angle glaucoma results from overproduction or obstruction to the outflow of aqueous humor. d. Acute glaucoma is a rapid onset of intraocular pressure higher than 50 to 70 mm Hg. e. Chronic glaucoma is a slow, progressive, gradual onset of intraocular pressure higher than 30 to 50 mm Hg.
  • 34. 3. Assessment a. Early signs include diminished accommodation and increased intraocular pressure. b. Late signs include loss of peripheral vision, decreased visual acuity not correctable with glasses, halos around lights; headache or eye pain occurs with acute closed-angle glaucoma.
  • 35. 4. Interventions for acute glaucoma a. Treat acute glaucoma as a medical emergency. b. Administer medications as prescribed to lower intraocular pressure. c. Prepare the client for peripheral iridectomy, which allows aqueous humor to flow from the posterior to the anterior chamber.
  • 36. 5. Interventions for chronic glaucoma a. Instruct the client on the importance f. Instruct the client that when maximal of medications (miotics) to constrict medical therapy has failed to halt the the pupils, (carbonic anhydrase progression of visual field loss and inhibitors) to decrease the optic nerve damage, surgery will be production of aqueous humor, and b- recommended. blockers to decrease the production g. Prepare the client for trabeculoplasty of aqueous humor and intraocular as prescribed to facilitate aqueous pressure. humor drainage. b. Instruct the client of the need for h. Prepare the client for trabeculectomy lifelong medication use. as prescribed, which allows drainage c. Instruct the client to wear a Medic of aqueous humor into the Alert bracelet. conjunctival spaces by the creation of d. Instruct the client to avoid an opening. anticholinergic medications. e. Instruct the client to report eye pain, halos around the eyes, and changes in vision to the physician.
  • 37. F. Retinal detachment 1. Description a. Detachment or separation of the retina from the epithelium b. Retinal detachment occurs when the layers of the retina separate because of the accumulation of fluid between them, or when both retinal layers elevate away from the choroid as a result of a tumor. c. Partial detachment becomes complete if untreated. d. When detachment becomes complete, blindness occurs.
  • 38. 2. Assessment a. Flashes of light b. Floaters or black spots (signs of bleeding) c. Increase in blurred vision d. Sense of a curtain being drawn over the eye e. Loss of a portion of the visual field
  • 39. 3. Immediate interventions a. Provide bed rest. b. Cover both eyes with patches as prescribed to prevent further detachment. c. Speak to the client before approaching. d. Position the client's head as prescribed. e. Protect the client from injury. f. Avoid jerky head movements. g. Minimize eye stress. h. Prepare the client for a surgical procedure as prescribed.
  • 40. 4. Surgical procedures a. Draining fluid from the subretinal space so that the retina can return to the normal position b. Sealing retinal breaks by cryosurgery, a cold probe applied to the sclera, to stimulate an inflammatory response leading to adhesions c. Diathermy, the use of an electrode needle and heat through the sclera, to stimulate an inflammatory response d. Laser therapy, to stimulate an inflammatory response and seal small retinal tears before the detachment occurs e. Scleral buckling, to hold the choroid and retina together with a splint until scar tissue forms, closing the tear f. Insertion of gas or silicone oil to promote reattachment; these agents float against the retina to hold it in place until healing occurs.
  • 41. 5. Postoperative interventions a. Maintain eye patches as h. Administer eye medications as prescribed. prescribed. i. Assist the client with activities of daily living. j. Avoid sudden head movements or anything b. Monitor for hemorrhage. that increases intraocular pressure. c. Prevent nausea and vomiting and k. Instruct the client to limit reading for 3 to 5 monitor for restlessness, which weeks. can cause hemorrhage l. Instruct the client to avoid squinting, straining and d. Monitor for sudden, sharp eye constipation, lifting heavy objects, and pain (notify the physician). bending from the waist. e. Encourage deep breathing but m. Instruct the client to wear dark glasses during the day and an eye patch at night. avoid coughing. n. Encourage follow-up care because of the f. Provide bed rest for 1 to 2 days as danger of recurrence or occurrence in the prescribed. other eye. g. Position the client as prescribed (positioning depends on the location of the detachment).
  • 42. G. Macular degeneration 1. A deterioration of the macula, the area of central vision 2. Can be atrophic (age-related or dry) or exudative (wet) 3. Age-related: Caused by gradual blocking of retinal capillaries leading to an ischemic and necrotic macula; rods and cones photoreceptors die. 4. Exudative: Serous detachment of pigment epithelium in the macula occurs; fluid and blood collect under the macula, resulting in scar formation and visual distortion. 5. Interventions are aimed at maximizing the remaining vision.
  • 43. 6. Assessment a. A decline in central vision b. Blurred vision and distortion
  • 44. 7. Interventions a. Initiate strategies to assist in maximizing remaining vision and maintaining independence. b. Provide referrals to community organizations. c. Laser therapy or photodynamic therapy may be prescribed to seal the leaking blood vessels in or near the macula.
  • 45. Contusions 1. Description a. Bleeding into the soft tissue as a result of an injury. b. A contusion causes a black eye; the discoloration disappears in about 10 days. c. Pain, photophobia, edema, and diplopia may occur.
  • 46. 2. Interventions a. Place ice on the eye immediately. b. Instruct the client to receive a thorough eye examination.
  • 47. Foreign bodies 1. Description: An object such as dust or dirt that enters the eye and causes irritation
  • 48. 2. Interventions a. Have the client look upward, expose the lower lid, wet a cotton-tipped applicator with sterile normal saline, gently twist the swab over the particle, and remove it. b. If the particle cannot be seen, have the client look downward, place a cotton applicator horizontally on the outer surface of the upper eye lid, grasp the lashes, and pull the upper lid outward and over the cotton applicator; if the particle is seen, gently twist a swab over it to remove.
  • 49. Penetrating objects 1. Description: An eye injury in which an object penetrates the eye
  • 50. 2. Interventions a. Never remove the object because it may be holding ocular structures in place; the object must be removed by the physician. b. Cover the object with a cup. c. Do not allow the client to bend over. d. Do not place pressure on the eye. e. Client is to be seen by a physician immediately. f. X-rays and CT scans of the orbit are usually obtained. g. Magnetic resonance imaging (MRI) is contraindicated because of the possibility of metal-containing projectile movement during the procedure.
  • 51. Chemical burns 1. Description: An eye injury in which a caustic substance enters the eye
  • 52. 2. Interventions a. Treatment should begin immediately. b. Flush the eyes at the scene of the injury with water for at least 15 to 20 minutes. c. At the scene of the injury, obtain a sample of the chemical involved. d. At the emergency room, the eye is irrigated with normal saline solution or an ophthalmic irrigation solution for at least 10 minutes. e. The solution is directed across the cornea and toward the lateral canthus. f. Prepare for visual acuity assessment. g. Apply an antibiotic ointment as prescribed. h. Cover the eye with a patch as prescribed.
  • 54. A. Risk factors related to ear disorders • Aging process • Infection • Medications • Ototoxicity • Trauma • Tumors
  • 55. B. Conductive hearing loss 1. Description a. Conductive hearing loss occurs when sound waves are blocked to the inner ear fibers because of external or middle ear disorders. b. Disorders often can be corrected with no damage to hearingor minimal permanent hearing loss.
  • 56. 2. Causes a. Any inflammatory process or obstruction of the external or middle ear b. Tumors c. Otosclerosis d. A buildup of scar tissue on the ossicles from previous middle ear surgery
  • 57. C. Sensorineural hearing loss 1. Description a. Sensorineural hearing loss is a pathological process of the inner ear or of the sensory fibers that lead to the cerebral cortex. b. Sensorineural hearing loss is often permanent, and measures must be taken to reduce further damage or to attempt to amplify sound as a means of improving hearing to some degree.
  • 58. 2. Causes a. Damage to the inner f. Inherited disorders ear structures g. Metabolic and b. Damage to the eighth circulatory disorders cranial nerve h. Infections c. Prolonged exposure to i. Surgery loud noise j. Menière's syndrome d. Medications k. Diabetes mellitus e. Trauma l. Myxedema
  • 59. D. Mixed hearing loss 1. Mixed hearing loss also is known as conductive-sensorineural hearing loss. 2. Client has sensorineural and conductive hearing loss.
  • 60. E. Signs of hearing loss and facilitating communication • Signs of Hearing Loss • Frequently asking others to repeat statements • Straining to hear • Turning head or leaning forward to favor one ear • Shouting in conversation • Ringing in the ears • Failing to respond when not looking in the direction of the sound • Answering questions incorrectly • Raising the volume of the television or radio • Avoiding large groups • Better understanding of speech when in small groups • Withdrawing from social interactions
  • 61. Facilitation of Communication • Using written words if the client is able to • Validating with the client the understanding see, read, and write of statements made by asking the client to • Providing plenty of light in the room repeat what was said • Getting the attention of the client before • Reading lips beginning to speak • Encouraging the client to wear glasses when • Facing the client when speaking talking to someone to improve vision for lip • Talking in a room without distracting noises reading • Moving close to the client and speaking • Using sign language, which combines speech slowly and clearly with hand movements that signify letters, words, or phrases • Keeping hands and other objects away from • Using telephone amplifiers the mouth when talking to the client • Talking in normal volume and at a lower pitch • Flashing lights that are activated by ringing of because shouting is not the telephone or doorbell • helpful and higher frequencies are less easily • Specially trained dogs that help the client be heard aware of sound and alert the client to potential danger • Rephrasing sentences and repeating information
  • 62. H. Presbycusis 1. Description a. Presbycusis is a sensorineural hearing loss associated with aging. b. Presbycusis leads to degeneration or atrophy of the ganglion cells in the cochlea and a loss of elasticity of the basilar membranes. c. Presbycusis leads to compromise of the vascular supply to the inner ear, with changes in several areas of the ear structure.
  • 63. 2. Assessment a. Hearing loss is gradual and bilateral. b. Client states that he or she has no problem with hearing but cannot understand what the words are. c. Client thinks that the speaker is mumbling.
  • 64. I. External otitis 1. Description a. External otitis is an infective inflammatory or allergic response involving the structure of the external auditory canal or auricles. b. An irritating or infective agent comes into contact with the epithelial layer of the external ear. c. Contact leads to an allergic response or signs and symptoms of an infection. d. The skin becomes red, swollen, and tender to touch on movement. e. The extensive swelling of the canal can lead to conductive hearing loss because of obstruction. f. External otitis is more common in children; it is termed swimmer's ear and occurs more often in hot, humid environments. g. Prevention includes the elimination of irritating or infecting agents
  • 65. 2. Assessment a. Pain b. Itching c. Plugged feeling in the ear d. Redness and edema e. Exudate f. Hearing loss
  • 66. 3. Interventions a. Apply heat locally for 20 minutes three times a day. b. Encourage rest to assist in reducing pain. c. Administer antibiotics or corticosteroids as prescribed. d. Administer analgesics such as aspirin or acetaminophen (Tylenol) for the pain as prescribed. e. Instruct the client that the ears should be kept clean and dry. f. Instruct the client to use earplugs for swimming. g. Instruct the client that cotton-tipped applicators should not be used in dry ears because their use can lead to trauma to the canal. h. Instruct the client that irritating agents such as hair products or headphones should be discontinued.
  • 67. K. Chronic otitis media 1. Description a. Chronic otitis media is a chronic infective, inflammatory, or allergic response involving the structure of the middle ear. b. Surgical treatment is necessary to restore hearing. c. The type of surgery can vary; it includes a simple reconstruction of the tympanic membrane, a myringoplasty, or replacement of the ossicles within the middle ear. d. A tympanoplasty, reconstruction of the middle ear, may be attempted to improve conductive hearing loss.
  • 68. 2. Preoperative interventions a. Administer antibiotic drops as prescribed. b. Clean the ear of debris as prescribed; irrigate the ear with a solution of equal parts of vinegar and sterile water as prescribed to restore the normal pH of the ear. c. Instruct the client to avoid persons with upper respiratory infections. d. Instruct the client to obtain adequate rest, eat a balanced diet, and drink adequate fluids. e. Instruct the client in deep breathing and coughing; forceful coughing, which increases pressure in the middle ear, is to be avoided postoperatively.
  • 69. 3. Postoperative interventions a. Inform the client that initial hearing after surgery is diminished because of the packing in the ear canal; hearing improvement will occur after the ear canal packing is removed. b. Keep the dressing clean and dry. c. Keep the client flat, with the operative ear up for at least 12 hours. d. Administer antibiotics as prescribed. e. Instruct the client that he or she may return to work in about 3 weeks postoperatively as prescribed.
  • 70. L. Mastoiditis 1. Description a. Mastoiditis may be acute or chronic and results from untreated or inadequately treated chronic or acute otitis media. b. The pain is not relieved by myringotomy.
  • 71. 2. Assessment a. Swelling behind the ear and pain with minimal movement of the head b. Cellulitis on the skin or external scalp over the mastoid process c. A reddened, dull, thick, immobile tympanic membrane, with or without perforation d. Tender and enlarged postauricular lymph nodes e. Low-grade fever f. Malaise g. Anorexia
  • 72. 3. Interventions a. Prepare the client for surgical removal of infected material. b. Monitor for complications. c. Simple or modified radical mastoidectomy with tympanoplasty is the most common treatment. d. Once tissue that is infected is removed, the tympanoplasty is performed to reconstruct the ossicles and tympanic membranes in an attempt to restore normal hearing.
  • 73. 4. Complications a. Damage to the abducens and facial cranial nerves b. Damage is exhibited by inability to look laterally (cranial nerve VI, abducens) and a drooping of the mouth on the affected side (cranial nerve VII, facial). c. Meningitis d. Brain abscess e. Chronic purulent otitis media f. Wound infections g. Vertigo, if the infection spreads into the labyrinth
  • 74. 5. Postoperative interventions a. Monitor for dizziness. b. Monitor for signs of meningitis, as evidenced by a stiff neck and vomiting. c. Prepare for a wound dressing change 24 hours postoperatively. d. Monitor the surgical incision for edema, drainage, and redness. e. Position the client flat with the operative side up. f. Restrict the client to bed with bedside commode privileges for 24 hours as prescribed. g. Assist the client with getting out of bed to prevent falling or injuries from dizziness. h. With reconstruction of the ossicles via a graft, take precautions to prevent dislodging of the graft.
  • 75. M. Otosclerosis 1. Description a. Otosclerosis is a disease of the labyrinthine capsule of the middle ear that results in a bony overgrowth of the tissue surrounding the ossicles. b. Otosclerosis causes the development of irregular areas of new bone formation and causes the fixation of the bones. c. Stapes fixation leads to a conductive hearing loss. d. If the disease involves the inner ear, sensorineural hearing loss is present. e. To have bilateral involvement is not uncommon, although hearing loss may be worse in one ear. f. The cause is unknown, although it is thought to have a familial tendency. g. Nonsurgical intervention promotes the improvement of hearing through amplification. h. Surgical intervention involves removal of the bony growth causing the hearing loss. i. A partial stapedectomy or complete stapedectomy with prosthesis (fenestration) may be performed surgically.
  • 76. 2. Assessment a. Slowly progressing conductive hearing loss b. Bilateral hearing loss c. A ringing or roaring type of constant tinnitus d. Loud sounds heard in the ear when chewing e. Pinkish discoloration (Schwartze's sign) of the tympanic membrane, which indicates vascular changes within the ear. f. Negative Rinne test g. Weber's test shows lateralization of sound to the ear with the most conductive hearing loss.
  • 77. N. Fenestration 1. Description a. Fenestration is removal of the stapes, with a small hole drilled in the footplate; a prosthesis is connected between the incus and footplate. b. Sounds cause the prosthesis to vibrate in the same manner as the stapes. c. Complications include complete hearing loss, prolonged vertigo, infection, or facial nerve damage.
  • 78. 2. Preoperative interventions a. Instruct the client in measures to prevent middle ear or external ear infections. b. Instruct the client to avoid excessive nose blowing. c. Instruct the client not to clean the ear canal with cotton-tipped applicators and to avoid trauma or injury to the ear canal.
  • 79. 3. Postoperative interventions a. Inform the client that hearing is initially worse after the surgical procedure because of swelling and that no noticeable improvement in hearing may occur for as long as 6 weeks. b. Inform the client that the Gelfoam ear packing interferes with hearing but is used to decrease bleeding. c. Assist with ambulating during the first 1 to 2 days after surgery. d. Provide side rails when the client is in bed. e. Administer antibiotic, antivertiginous, and pain medications as prescribed. f. Assess for facial nerve damage, weakness, changes in tactile sensation and taste sensation, vertigo, nausea, and vomiting. g. Instruct the client to move the head slowly when changing positions to prevent vertigo. h. Instruct the client to avoid persons with upper respiratory tract infections.
  • 80. i. Instruct the client to avoid showering and getting the head and wound wet. j. Instruct the client to avoid using small objects (cotton- tipped applicators) to clean the external ear canal. k. Instruct the client to avoid rapid extreme changes inpressure caused by quick head movements, sneezing, nose blowing, straining, and changes in altitude. l. Instruct the client to avoid changes in middle ear pressure because they could dislodge the graft or prosthesis.
  • 81. O. Labyrinthitis 1. Description: Infection of the labyrinth that occurs as a complication of acute or chronic otitis media 2. May result from growth of a cholesteatoma— benign overgrowth of squamous cell epithelium
  • 82. 3. Assessment a. Hearing loss that may be permanent on the affected side b. Tinnitus c. Spontaneous nystagmus to the affected side d. Vertigo e. Nausea and vomiting
  • 83. 4. Interventions a. Monitor for signs of meningitis, the most common complication, as evidenced by headache, stiff neck, and lethargy. b. Administer systemic antibiotics as prescribed. c. Advise the client to rest in bed in a darkened room. d. Administer antiemetics and antivertiginous medications as prescribed. e. Instruct the client that the vertigo subsides as the inflammation resolves. f. Instruct the client that balance problems that persist may require gait training through physical therapy.
  • 84. P. Menière's syndrome 1. Description a. Menière's syndrome is also called endolymphatic hydrops; it refers to dilation of the endolymphatic system by overproduction or decreased reabsorption of endolymphatic fluid. b. The syndrome is characterized by tinnitus, unilateral sensorineural hearing loss, and vertigo. c. Symptoms occur in attacks and last for several days, and the client becomes totally incapacitated during the attacks. d. Initial hearing loss is reversible but as the frequency of attacks continues, hearing loss becomes permanent. e. Repeated damage to the cochlea caused by increased fluid pressure leads to permanent hearing loss.
  • 85. 2. Causes a. Any factor that increases endolymphatic secretion in the labyrinth b. Viral and bacterial infections c. Allergic reactions d. Biochemical disturbances e. Vascular disturbance, producing changes in the microcirculation in the labyrinth f. Long-term stress may be a contributing factor.
  • 86. 3. Assessment a. Feelings of fullness in the ear b. Tinnitus, as a continuous low-pitched roar or humming sound, that is present much of the time but worsens just before and during severe attacks c. Hearing loss that is worse during an attack d. Vertigo, as periods of whirling, that might cause the client to fall to the ground e. Vertigo that is so intense that even while lying down, the client holds the bed or ground in an attempt to prevent the whirling f. Nausea and vomiting g. Nystagmus h. Severe headaches
  • 87. 4. Nonsurgical interventions a. Prevent injury during vertigo attacks. b. Provide bed rest in a quiet environment. c. Provide assistance with walking. d. Instruct the client to move the head slowly to prevent worsening of the vertigo. e. Initiate sodium and fluid restrictions as prescribed. f. Instruct the client to stop smoking. g. Administer nicotinic acid (niacin) as prescribed for its vasodilatory effect. h. Administer antihistamines as prescribed to reduce the production of histamine and the inflammation. i. Administer antiemetics as prescribed. j. Administer tranquilizers and sedatives as prescribed to calm the client, allow the client to rest, and control vertigo, nausea, and vomiting. k. Mild diuretics may be prescribed to decrease endolymph volume
  • 88. 5. Surgical interventions a. Surgery is performed when medical therapy is ineffective and the functional level of the client has decreased significantly. b. Endolymphatic drainage and insertion of a shunt may be performed early in the course of the disease to assist with the drainage of excess fluids. c. A resection of the vestibular nerve or total removal of the labyrinth or a labyrinthectomy may be performed.
  • 89. 6. Postoperative interventions a. Assess packing and dressing on the ear. b. Speak to the client on the side of the unaffected ear. c. Perform neurological assessments. d. Maintain side rails. e. Assist with ambulating. f. Encourage the client to use a bedside commode rather than ambulating to the bathroom. g. Administer antivertiginous and antiemetic medications as prescribed.
  • 90. Trauma 1. Description a. The tympanic membrane has a limited stretching ability and gives way under high pressure. b. Foreign objects placed in the external canal may exert pressure on the tympanic membrane and cause perforation. c. If the object continues through the canal, the bony structure of the stapes, incus, and malleus may be damaged. d. A blunt injury to the basal skull and ear can damage the middle ear structures through fractures extending to the middle ear. e. Excessive nose blowing and rapid changes of pressure that occur with nonpressurized air flights can increase pressure in the middle ear. f. Depending on the damage to the ossicles, hearing loss may or may not return.
  • 91. 2. Interventions a. Tympanic membrane perforations usually heal within 24 hours. b. Surgical reconstruction of the ossicles and tympanic membrane through tympanoplasty or myringoplasty may be performed to improve hearing.
  • 92. S. Cerumen and foreign bodies 1. Description a. Cerumen, or wax, is the most common cause of impacted canals. b. Foreign bodies can include vegetables, beads, pencil erasers, insects, and other objects.
  • 93. 2. Assessment a. Sensation of fullness in the ear with or without hearing loss b. Pain, itching, or bleeding
  • 94. 3. Cerumen a. Removal of wax by irrigation is a slow process. b. Irrigation is contraindicated in clients with a history of tympanic membrane perforation or otitis media. c. To soften cerumen, add three drops of glycerin or mineral oil to the ear at bedtime, and three drops of hydrogen peroxide twice daily as prescribed. d. After several days, irrigate the ear. e. The maximum amount of solution that should be used for irrigation is 50 to 70 mL.
  • 95. 4. Foreign bodies a. With a foreign object of vegetable matter, irrigation is used with care because this material expands with hydration. b. Insects are killed before removal, unless they can be coaxed out by flashlight or a humming noise. c. Mineral oil or diluted alcohol is instilled to suffocate the insect, which then is removed using ear forceps. d. Use a small ear forceps to remove the object and avoid pushing the object farther into the canal and damaging the tympanic membrane.

Notas do Editor

  1. For infants and children younger than 3 years, pull the lobe back and down. (From Lilley, L., Harrington, S., & Snyder, J. [2004].Pharmacology and the nursing process [4thed.]. St. Louis: Mosby.)
  2. FIG. 36-2 Location of various tonsillar masses. (From Hockenberry, M., Wilson, D., & Winkelstein, M. [2005]. Wong's essentials of pediatricnursing [7th ed.]. St. Louis: Mosby.)
  3. The cloudy appearance of a lens affected by cataract. (From Black, J., & Hawks, J., [2005]. Medical-surgical nursing: Clinical management for positive outcomes [7th ed.]. Philadelphia: W.B. Saunders. Courtesy of Ophthalmic Photography at the Universityof Michigan, W.K. Kellogg EyeCenter, Ann Arbor, MI.)
  4. The scleral buckling procedure for repair of retinal detachment. (From Ignatavicius, D., & Workman, M. [2006].Medical surgical nursing: Critical thinking for collaborative care [5th ed.]. Philadelphia: W.B. Saunders.)