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Adrenal Insufficiency: Causes, Symptoms, Diagnosis and Treatment
1. بسم الله الرحمن الرحيم RIBAT UNIVERSITY HOSPITAL DEPARTMENT OF MEDICINE Unite (E) Adrenal Insufficiency Dr. EyadGadour (MBBS National Ribat University)
2. Basics Description - Inadequate hydrocortisone secretion to meet body's stress requirement - Adrenal deficiency: 1- Inadequate cortisol 2- Unresponsive to stimulation with adrenocorticotropic hormone (ACTH) - Functional hypoadrenalism: 1- Inadequate cortisol 2- Partial responsive to stimulation with ACTH - Addisonian crisis (acute adrenal insufficiency): 1- Life-threatening emergency 2- Precipitated by intensification of: * Chronic adrenal insufficiency * Acute adrenal hemorrhage * Rapid steroid withdrawal * Treatment of hypothyroidism with unrecognized adrenal disease * Steroid-dependent patient under stress owing to pregnancy, surgery, trauma, infection, or dehydration
7. Diagnosis Signs and Symptoms Symptoms: Depression Lethargy Malaise Myalgias Anorexia Abdominal pain Nausea Vomiting Dehydration (found in primary adrenal insufficiency only) Salt craving Signs: Fever or hypothermia Mental status changes Tachycardia Orthostatic blood pressure changes or frank shock Weight loss Goiter Hypogonadism Hyperkalemia Sodium depletion Eosinophilia Hyperpigmentation (found in primary adrenal insufficiency only) Vitiligo Addisonian crisis: Hypotension and shock Hyponatremia Hyperkalemia Hypoglycemia
8. Essential Workup Laboratory confirmation of diagnosis not possible in emergency department Adrenal crisis: life-threatening condition: High degree of suspicion should prompt initiation of therapy before definitive diagnosis. Plasma cortisollevel <20 آµg/dL accompanied by shock suggests adrenal insufficiency. Electrolytes: Potassium Sodium BUN, creatinine: Elevated owing to dehydration Serum glucose levels may be low
11. Treatment Initial Stabilization Airway, breathing, and circulation management (ABCs) Cardiac monitor Blood pressure support for hypotension: Normal saline (0.9%) IV fluids 500 mL–1 L (peds: 20 mL/kg) bolus Avoid pressors (if possible): May precipitate dysrhythmias Supplemental oxygen to meet metabolic needs Correct hyperthermia: Initiate cooling measures. ED Treatment Glucocorticoid replacement: Hydrocortisone: 100 mg or Dexamethasone: 4 mg Dexamethasone will not interfere with results of cosyntropin stimulation tests. Volume expansion: D5W 0.9% normal saline at rate of 500–1,000 mL/h for first 3–4 hours Care should be taken to note patient's age, volume, and cardiac and renal function. For hypoglycemia: D50W Treat life-threatening dysrhythmias secondary to hyperkalemia with calcium ,Sodium bicarbonate: 1–2 mEq/kg IV, and Insulin (regular): 10 units by IV push /glucose. Identification and correction of underlying precipitant
12. Follow-Up Disposition Admission Criteria All patients with acute adrenal insufficiency ICU admission for patients with unstable or potentially unstable cases Discharge Criteria Normal laboratory evaluation with treated adrenal insufficiency