Audio Qbank – Q122 – A 52M with chronic fatigue

 

A 52-year-old man presents to the physician for a 6-month-history of fatigue and muscle weakness. On examination, the skin on his forearms appears significantly darker as compared to his face. His vitals are: temperature 98.6F, HR 66, RR 12, BP 105/65. Which of the following sets of findings is most likely in this patient?

 

↑ K; ↓ Na; ↑ HCO3; ↑ pH
↑ K; ↓ Na; ↑ HCO3; ↓ pH
↑ K; ↓ Na; ↓ HCO3; ↑ pH
↑ K; ↓ Na; ↓ HCO3; ↓ pH
↓ K; ↑ Na; ↑ HCO3; ↑ pH
↓ K; ↑ Na; ↑ HCO3; ↓ pH
↓ K; ↑ Na; ↓ HCO3; ↑ pH
↓ K; ↑ Na; ↓ HCO3; ↓ pH

 

Cut-to-the-chase Answer (0:49):
HY USMLE Answer (4:57):