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A member asked:
I have a pulse oximeter has a perfusion index percentage what does that mean?
A doctor has provided 1 answer
Reliability : Perfusion index is normally monitored with pulse oximeters. PI is also a good indicator of the reliability of the pulse oximeter reading. For most pulse oximeters for general use, the reading is unreliable or unavailable if PI is at or below 0.4%. It is most reliable above 5%. The max is 20% for extremely powerful pulses.
Answered 7/14/2020
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