For maximum loading of hemoglobin with oxygen at the lungs, the
A) PO2 should be about 70 mm Hg.
B) pH should be slightly acidic.
C) DPG levels in the red blood cells should be high.
D) PCO2 should be high
E) PCO2 should be low.

Question

Quizplus · Accepted Answer

For maximum loading of hemoglobin with oxygen, the partial pressure of carbon dioxide (PCO2) should be low, as high levels of CO2 can lead to a rightward shift in the oxygen-hemoglobin dissociation curve, reducing hemoglobin's affinity for oxygen.

For Maximum Loading of Hemoglobin with Oxygen at the Lungs