[Solved] With regard to the normal Hb-ox-y-en dissociation curve, which is the most likely to be CORRECT?

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Q.	With regard to the normal Hb-ox-y-en dissociation curve, which is the most likely to be CORRECT?
A.	when arterial PO2 = 60mmHg, Hb saturation is ∼ 80%
B.	when arterial PO2 = 40mmHg, Hb saturation is ∼ 75%
C.	when arterial PO2 = 30mmHg, Hb saturation is ∼ 40%
D.	acidosis shifts the curve to the left
E.	decreased PCO2 shifts the curve to the right
Answer» B. when arterial PO2 = 40mmHg, Hb saturation is ∼ 75%

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