Audio Qbank – Q90 – A 27F returns from high altitude

 

A healthy 27-year-old woman lives at high altitude for 6 weeks. After returning to sea level, the oxygen delivery to her muscles is greater than prior to her acclimatization. Which of the following best explains this increase in oxygen delivery?

 

  Blood oxygen content
  Bohr effect
  Buffering of protons by deoxygenated hemoglobin
  Chloride shift
  Haldane effect

 

Cut-to-the-chase Answer (0:20):
HY USMLE Answer (5:09):