A 52-year-old man comes to the physician because of a 3-week history of shortness of breath. He sometimes takes medication for insomnia. His BMI is 34. His blood gases are:
Arterial pCO2: 31 mmHg (NR 33-44)
Arterial pO2: 97 mmHg (NR 80-100)
Arterial O2 content: 11% (NR 17-21%)
Bicarbonate: 22 mEq/L (NR 22-28)
Which of the following best explains these findings?
Adverse effect of benzodiazepines
Anemia
High-altitude residence
Pulmonary edema
Sleep apnea
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Cut-to-the-chase Answer (0:36):
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HY USMLE Answer (4:25):
