What is a normal blood oxygenation level?

Answer 1

Normal oxygen level of the earth's atmosphere is 21.5%. An oxygen deficient atmosphere is anything below 19.5%. Oxygen enriched atmospheres are 22.5% or greater (explosion hazard in the emergency responder arena).

Answer 2

90-100% is normal, although this may vary by age, co-existing medical conditions and altitude.

J. DeLaughter, DO

lmnurse added - In some older patients, especially those with COPD you can see levels as low as 85% on room air.

23babygirl added - It does not have to be an older patient to see this. It can be in ANY patient with active COPD.

fire61890 added- the actual normal oxidation level is 96%-100% lower than 96 is normal for someone with COPD or someone who smokes a lot

Answer 3

Oxygen saturation's that fluctuate during sleep usually are the result of sleep disordered breathing, which is not uncommon. Brady-Tachycardia effect are typical as well. One could question the integrity of the signal during sleep, however, I bet you have some form of respiratory disturbance.

-could also be a underlying pulmonary problem, but I doubt it (however, I have no idea of your medical history)

-a 3 % de-saturation's would not be significant according to the American Academy of Sleep Medicine, unless it is seen resulting in arousal's and the patient shows a reduced amplitude in respiratory flow.

-heart rate increases are usually seen as the patient finishes his period of shallow/cessation of breathing and experience an arousal from sleep.

If you snore or are restless in your sleep, this should be an even bigger reason to have an overnight polysomnograph conducted. All you need is Pulse Oximeter check this http://www.pulmonarysolutions.net/Catalog/Online-Catalog-Category/11833/Pulse-Oximeters

Note: Always consult the expert before trying anything else.

Answer 4

above 90 is good. Really I heard 98 is supposed to be where you blood oxygen level should be.

Answer 5

normal SAO2 levels are: 95-100

Answer 6

sp 02

Answer 7

90