A 28-Year-Old Man Is Admitted to the Emergency Department with Suspected

Multiple Choice

A 28-year-old man is admitted to the emergency department with suspected drug overdose.The patient is obtunded and slightly cyanotic.The ABG results obtained while the patient was breathing room air were: pH 7.24; PₐCO₂ 58 mm Hg; PₐO₂ 52 mm Hg; HCO₃⁻ 24 mEq/L.The most appropriate interpretation of these results is which of the following?

A) Chronic respiratory failure
B) Hypoxemic respiratory failure
C) Hypercapnic respiratory failure
D) Acute or chronic respiratory failure