Audio Qbank – Q175 – A 38M with progressive fatigue

 

A 38-year-old man comes to the GP for a 3-month history of progressive fatigue. He says that he has trouble staying awake at work and drinks 6 cups of coffee a day. His wife often complains that he snores. BMI is 38. If arterial blood gas is performed on this patient, which of the following combinations of findings is most likely?

 

↑ HCO3; ↑ pCO2; ↑ pH
↑ HCO3; ↑ pCO2; ↓ pH
↑ HCO3; ↓ pCO2; ↑ pH
↑ HCO3; ↓ pCO2; ↓ pH
↓ HCO3; ↑ pCO2; ↑ pH
↓ HCO3; ↑ pCO2; ↓ pH
↓ HCO3; ↓ pCO2; ↑ pH
↓ HCO3; ↓ pCO2; ↓ pH

 

Cut-to-the-chase Answer (0:33):
HY USMLE Answer (2:29):