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How do you calculate PO2?

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Answer:

PO2 can be calculated in humans 1 of 2 ways, directly or indirectly. Indirectly is the most frequently used method and easily calculation is obtained using a device called a Pulse Oximeter. You may have seen these devices and not realize, they are rectangular in shape and clamp to the end of a patients fingertip much the same way as a clothes pin to sheets (without as much pressure). It determines the PO2 level using a combination of Red and Infrared LED and is much less evasive than the direct method which measures via a blood sample. The actual PO2 percentage is based on percentage of arterial hemoglobin in the oxyhemoglobin.

First answer by ID0410593055. Last edit by ID0410593055. Question popularity: 1 [recommend question].

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