A 36-year-old woman is found comatose at her home and is life-flighted to the nearest regional medic

A 36-year-old woman is found comatose at her home and is life-flighted to the nearest regional medical center.Blood gases reveal a normal PaO2 but a lower-thannormal arterial O2 saturation.Which of the following conditions is most consistent with the findings?

A.Anemia

B.Carbon monoxide poisoning

C.Hypoventilation

D.Right-to-left shunt

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