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O2 saturation

Thread Status: Hello , There was no answer in this thread for more than 60 days.
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N

naiad

Apnea Carp
Supporter
Oct 11, 2003
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Today I went to the hospital and as part of a checkup, they measured my O2 saturation with a finger clip pulse oximeter. It was 100%.

I thought it wasn't possible to have a SaO2 of 100%. I was breathing normal air, and I hadn't done any hyperventilation or packing recently or taken any medications. I have been doing quite a lot of static training recently.

Why is this? Maybe some of the physiology experts can explain...

It's good to know I'm better than normal! :D

Lucia
 
From my engineering point of view, I'd ask when was the last time oxymeter calibrated ;-)
 
Many pulse oximeters (especially the professional ones) have the option to set them to the real value or as an alternative to set normal saturation (which is often 97-98%) as 100%.
Probably gives fewer questions from patients why they are not at 100% :)
 
Thanks for the answers - that probably explains it!

Strange thing to do though... I didn't know they changed things to make people feel more normal!
 
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