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COMLEX Osteopathic Medicine

Category - Respir./Circul

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Jason is having an arterial stick done to measure the level of oxygen in his blood. The proper value to look at would be:

O₂
CO₂
O₃
PO₂

Explanation

Answer - D -Air is only partially made of oxygen, which means that when measuring its volume, the value is known as the partial pressure of oxygen, or PO₂.

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