Multiple Choice
Infants are more likely to experience problems regulating acid-base balance because of several factors, including __________.
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26. Fluid and Electrolyte Balance, Acid Base Balance
Acid-Base Balance
Multiple Choice
Which of the following arterial blood gas results would be consistent with metabolic alkalosis?
A
pH 7.28, HCO3- 22 mEq/L, PaCO2 50 mmHg
B
pH 7.48, HCO3- 30 mEq/L, PaCO2 40 mmHg
C
pH 7.32, HCO3- 18 mEq/L, PaCO2 35 mmHg
D
pH 7.40, HCO3- 24 mEq/L, PaCO2 40 mmHg
Verified step by step guidance1
Understand the concept of metabolic alkalosis: It is a condition characterized by an elevated pH in the blood due to increased bicarbonate (HCO3-) levels or a loss of hydrogen ions.
Identify the normal ranges for arterial blood gases: Normal pH is 7.35-7.45, normal HCO3- is 22-26 mEq/L, and normal PaCO2 is 35-45 mmHg.
Determine the pH level that indicates alkalosis: A pH greater than 7.45 suggests alkalosis.
Look for elevated HCO3- levels: In metabolic alkalosis, the HCO3- level is typically higher than the normal range of 22-26 mEq/L.
Review the provided options and identify the one with a pH greater than 7.45 and an elevated HCO3- level, which would be consistent with metabolic alkalosis.
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