Which of the following can occur with an abrupt exposure to extremely high altitudes?
a. hypocapnia (low arterial PCO2)
b. elevated alveolar PO2
c. hypoventilation
d. decreased percentage concentration of O2 in atmosphere.
e. after 3 days, decreased 2-3 DPG levels in red blood cells
I need an explanation of EACH choice whether the answer is right/wrong.