alleryA rise in P50 indicates what change in the oxygen dissociation curve?
ARight shift, lower affinity
BLeft shift, higher affinity
CNo shift, same affinity
DLeft shift, lower affinity
Answer & Solution
Correct answer: A. Right shift, lower affinity
A higher P50 means more pO2 is needed for half saturation, so the curve moves right as affinity falls.
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