Audio Qbank – Q87 – A 52M with fatigue

A 52-year-old man comes to the GP requesting stimulant medication to help him stay awake at work. He says he always feels tired throughout the day and just can’t seem to focus or stay awake. He drinks four cups of coffee daily. Vitals are: temperature 98.6F, HR 78, RR 14, BP 155/90. His BMI is 52. Cardiac examination shows a loud S2. The lungs are clear to auscultation. Which of the following best reflects this patient’s arterial blood gas
parameters?

 

  ↑ pCO2; ↑ pH; ↑ Bicarbonate
  ↑ pCO2; ↑ pH; ↓ Bicarbonate
  ↑ pCO2; ↑ pH;  ↔ Bicarbonate
  ↑ pCO2; ↓ pH; ↑ Bicarbonate
  ↑ pCO2; ↓ pH; ↓ Bicarbonate
  ↑ pCO2; ↔ pH; ↑ Bicarbonate
  ↑ pCO2; ↔ pH; ↓ Bicarbonate
  ↑ pCO2; ↔ pH; ↔ Bicarbonate
  ↓ pCO2; ↑ pH; ↑ Bicarbonate
  ↓ pCO2; ↑ pH; ↓ Bicarbonate
  ↓ pCO2; ↑ pH;  ↔ Bicarbonate
  ↓ pCO2; ↓ pH; ↑ Bicarbonate
  ↓ pCO2; ↓ pH; ↓ Bicarbonate
  ↓ pCO2; ↔ pH; ↑ Bicarbonate
  ↓ pCO2; ↔ pH; ↓ Bicarbonate
  ↓ pCO2; ↔ pH; ↔ Bicarbonate

 

Cut-to-the-chase Answer (0:21):
HY USMLE Answer (2:18):