Pulseoximeter finger readings variations

Posted by desertdwellerjh @desertdwellerjh, 17 hours ago

Yesterday at my pulmonologist’s office as is typical, my O2 level was read using my left pointer finger with a pulseoximeter and was 91 which was concerning to me. At my request, we also measured the middle finger of my right hand and it was 95. This morning upon awakening I took a reading from the same fingers and again, the same difference. So I googled the subject and found this st udy:
https://pmc.ncbi.nlm.nih.gov/articles/PMC4627972/
My question and given the statistical significance conclusion, it seems I should always insist that my right middle finger be used yet I am also wondering if anyone has discussed this finding with their pulmonologist when assessing their lung function? I was surprised.

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Sue, Volunteer Mentor | @sueinmn | 13 hours ago

@desertdwellerjh Perhaps just offer your middle finger for the test each time? If questioned, explain why.
I actually though using the middle finger was the standard, our clinic has always done it that way.

desertdwellerjh | @desertdwellerjh | 11 hours ago

Thanks! I do not recall at any time getting a specific instruction for the middle finger on the right hand. I will be offering that finger from now on!

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