Quote:
Originally Posted by Number 10 GI
I've been in a lot of hospitals over the years as a patient and visitor. I saw very few medical staff wearing masks even in the ICU. Only since the Covid virus have I seen widespread use of masks by medical personnel. Also did you ever check your oxygen level while you were wearing a mask? I seriously doubt it. Medical personnel are for the most part younger people in reasonably good health vs older people with existing health problems or just older bodies that aren't functioning at optimal levels. Does it not make sense that an older person may have a lower oxygen level while wearing a mask?
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The above is one in a string of comments that began with a claim that a person was seen at their doctor and was hypoxic and after a couple breaths without a mask was then normal with the oxygen saturation going from high 80's to high 90's Further the nurse reportedly said she is seeing this frequently.
This social media claim has been studied and refuted as a significant problem. No study can prove it didn't happen once. Or that the nurse errantly applied the oximeter giving wrong numbers. But a study of elderly adults wearing non-medical cloth masks was done where multiple oxygen measurements were taken over three hours and there were ZERO persons who had hypoxia from wearing a mask.
Peripheral Oxygen Saturation in Older Persons Wearing Nonmedical Face Masks in Community Settings | Geriatrics | JAMA | JAMA Network The study looked for a 2% drop in oxygen saturation. It didn't find one. The poster here claimed a 10% drop relieved by a couple breaths with no supplemental oxygen.
Sorry, but an oxygen saturation of 89 will never go up to 98 with a couple breaths within a few seconds. Measurement error or fabrication.