A patient's arterial blood gas analysis shows a pH of 7.28. The PaCO2 is high. Which of the following acid–base imbalances is the patient experiencing?
a. Respiratory alkalosis
b. Respiratory acidosis
c. Metabolic alkalosis
d. Metabolic acidosis
ANS: B
A low pH with a high PaCO2 indicates respiratory acidosis. Alkalosis is associated with a high pH. Metabolic acidosis is associated with a low pH and HCO3.
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