NBME 11 blk 1 q 13 - beejan

[ArchivalUser]

An investigative team studying a physiologic mechenism that explains increased exercise performance during 2 wks at high altitude (10,000 feet above sea level) in experimantal animals. These experimants design to distinguish b/w increase in arterial oxygen delivery to exersice muscle and unloading oxygen from blood into the tissue. Which of the following factors would be expected to increase data for support increase unloading oxygen into the tissue with acclimatization with high altitude?

a.. Arterial PH
b.. Arterial Po2
c.. 23 BPG
d.. hematocrit
e.. net hemoglobin

[ArchivalUser]

i think C ...my thinking is its asking what would basically favor unloading aka a right shift on the O2 curve, so from the choices increase 2,3 will bind to globin and thus occupy the site and favor more unloading into the tissues..

what do you think