What happens when the temperature of the blood rises? 1. The Hb saturation for a given PO2 falls. 2. The HbO2 curve shifts to the right. 3. The affinity of Hb for O2 increases
a. 1 and 2 only
b. 1 and 3 only
c. 2 only
d. 1, 2, and 3
ANS: A
Conversely, as body temperature rises, the curve shifts to the right, and the affinity of Hb for O2 decreases.
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