do you need to fast for a pulse oximeter test (blood oxygen test) and if so for how long?


No, a pulse-ox test is just a sensor they put on your fingertip and read the O2 content, there isn’t any blood extracted.

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One Response to do you need to fast for a pulse oximeter test (blood oxygen test) and if so for how long?

  1. Robert W says:

    No, a pulse-ox test is just a sensor they put on your fingertip and read the O2 content, there isn’t any blood extracted.
    References :
    I used to be a nurse’s assistant, and administered this test all the time.