Hi I have 2 oximeter. One shows 95% and other shows 98% in the same finger. Which one is correct. How to believe which is correct. My friends oximeter showed 92% once. I went to hospital for oxygen saturation check and i checked with the electronic screen one, and there it always comes 98. How to check which one is correct. Thanks
Saturation less than 92. .Patient is advised pulmonologist opinion immediately.Symptoms nclude dizziness,headache,breathing difficulty and bluish discolouration of skin and mucous membrane.