Arterial Blood Gases

Arterial Blood Gas Interpretation Sherry L. Knowles, RN, CCRN, CRNI Orlando Regional Medical Center 2004

Objectives ,[object Object],[object Object],[object Object],[object Object]

Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object]

Why Do ABG’s? ,[object Object],[object Object],[object Object],[object Object]

Fundamentals ,[object Object],[object Object],[object Object],[object Object],[object Object]

Hemoglobin ,[object Object],[object Object],Hemoglobin + 4 Oxygen = Oxyhemoglobin

Hemoglobin Binding Sites ,[object Object],[object Object],[object Object],[object Object]

Carboxyhemoglobin (HbCO) ,[object Object],[object Object],[object Object]

Methemoglobin (MetHb) ,[object Object],[object Object],[object Object]

Oxygen and Hemoglobin ,[object Object],[object Object],[object Object],[object Object]

Acid Base Balance ,[object Object],[object Object],[object Object]

Buffer System ,[object Object],[object Object],[object Object],[object Object]

CO 2 ,[object Object],[object Object],[object Object],[object Object]

HCO 3 ,[object Object],[object Object],[object Object]

Basic ABG Components ,[object Object],[object Object],[object Object],[object Object]

pH ,[object Object],[object Object],[object Object],[object Object]

PaCO 2 ,[object Object],[object Object],[object Object]

PaO 2 ,[object Object],[object Object],[object Object]

SaO 2 ,[object Object],[object Object],[object Object]

Ventilation ,[object Object],[object Object],[object Object],[object Object]

Respiratory Mechanism ,[object Object],[object Object],[object Object],[object Object]

Metabolic Mechanism ,[object Object],[object Object],[object Object]

Compensation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Normal ABG Values ,[object Object],[object Object],[object Object],[object Object],[object Object], Norms Quick Reference

Steps to ABG Interpretation ,[object Object],[object Object],[object Object]

STEP 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],7.35-7.45 < 7.35 > 7.45

STEP 1 ,[object Object],[object Object], ph < 7.35 7.35-7.45 > 7.45 Acidosis Normal or Compensated Alkalosis

STEP # 2 ,[object Object],[object Object],[object Object], PaCO2 < 35 35 -45 > 45 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object], Normal or Compensated ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

STEP 3 ,[object Object],[object Object],[object Object], HCO 3 < 22 22-26 > 26 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object], Normal or Compensated ,[object Object],[object Object],[object Object],[object Object],[object Object]

Interpretation High pH Low pH Alkalosis Acidosis High HCO 3 Low PaCO2 High PaCO2 Low HCO 3 Metabolic Respiratory Respiratory Metabolic

Normal ABG Values ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Combined Disturbances ,[object Object],[object Object],[object Object],[object Object]

OxyHemoglobin Dissociation Curve ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Question 1 ,[object Object],[object Object],[object Object]

Question #2 ,[object Object],RESPIRATORY ALKALOSIS

Question # 3 ,[object Object],METABOLIC ALKALOSIS

Question # 4 ,[object Object],[object Object]

Question # 5 ,[object Object],[object Object],[object Object]

Arterial Blood Gases

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