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Partial Pressure of Oyxgen (Pa02)


Updated May 16, 2014

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Definition: When measuring arterial blood gases, you will sometimes hear the term partial pressure of oxygen, or Pa02. Partial pressure refers to the pressure exerted by a specific gas in a mixture of other gases. Pa02, put simply, is a measurement of oxygen in arterial blood.

The range of normal for Pa02 is 75 - 100 mm Hg. If your Pa02 is less than this, it means you are not getting enough oxygen.

Also Known As: Pa02
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