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by brucen 2159 days ago
It often takes a while for the probes to stablise and get an accurate reading, so this is a very common pattern, but I haven't looked into why. I think part of it may be the machine calibrating to the flow of blood through the area of skin you have chosen. You often apply the probe and sit it there for 30-60s waiting for it to stabilise.

If you are worried, ask them to leave it on throughout your consult. You should see it sit at 99-100% for the rest of your stay.