How low can oxygen saturation go before losing consciousness?

Answer 1

76

Edit to the community's answer: 76% is a lie. Mine was 76% yesterday (June 19, 2015). And I didn't fall unconscious. It is dependent upon the length of time in which you are at that saturation. If you continue to be at 76% for too long you will eventually lose consciousness. But if you are only at 76% for a minute or so you will probably be fine. Put on some oxygen and do some breathing exercises to bring your oxygen saturations up. From what I have been able to find it seems that if your oxygen saturation hits 50% you are immediately unconscious. But more likely it is dependent upon different factors and certain people might be unconscious sooner. However everyone would be unconscious at 50%

If you don't have oxygen call for emergency services and do some structured breathing exercises. I have found that the best exercise to bring my oxygen saturation up quickly is to control my exhaling but to let my body inhale at the rate it wants. That is I slowly control my exhaling and but then exert no control on my inhaling. The only problem is the oxygen saturation only stays so high for a short period of time which is why you should call for emergency services if your oxygen saturation is that low. In fact anything below about 90% should probably be called in as difficulty breathing, especially if you have any symptoms of hypoxia, such as, increased rate of breathing, visual problems, trouble concentrating, fatigue, changes in mood, shortness of breath, blue lips, blue fingers tips, blue ears, et cetera.

Answer 2

My nephew is in the hospital .his oxygen level is 70%.is that bad

Answer 3

If the level is under 95, it is low.