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A member asked:
In a person with sleep apnea, what causes the rises and falls in oxygen saturation of arterial blood during sleep?
6 doctors weighed in across 3 answers
Lack of oxygen: When you stop breathing (apnea) oxygen and carbon dioxide do not exchange in the lungs. Oxygen drops (hypoxia) and co2 increase (hypercapnia)... Classic response in a patient with apnea.
Answered 7/13/2012
6.3k views
No breaths=no oxygen: This is caused by the temporary stoppage/blocking of breathing which is found in sleep apnea. Longer stoppage/blocking of breathing means less oxygen in the blood.
Answered 5/28/2016
5.1k views
Sleep apnea: Sleep apnea is defined as stopping breathing for 10 seconds. During that time, the body is not getting any oxygen. In addition , there can be instances that last less than 10 seconds, or where a less than adequate effort to breath is attempted. These also reduce the oxygen intake.
Answered 8/29/2016
5k views
Related Questions
A member asked:
Consistent oxygen saturation of 89-90 while sleeping. Is this considered obstructive sleep apnea?
9 doctors weighed in across 4 answers
A member asked:
My Arterial Blood Gas says P02 is 72 and the oxygen saturation is 95 and calcium (ionised) 1.12 . Are these normal numbers?
A doctor has provided 1 answer
A member asked:
When I was diagnosed with sleep apnea, the doctor said my blood oxygen level was normal. Do I actually need a cpap?
6 doctors weighed in across 3 answers
People also searched for:
Would 9 breathing apneas and blood oxygen levels of 87.5% be considered mild sleep apnea? Would this cause a person to be tired during the day etc?
I'm having blood oxygen desaturations down to the mid-70s during the night with sleep apnea. Is this dangerous or can it wait until I see my doctor in a couple of weeks?
Feel great. Heart checks out, no resp infections. Noticed o2 saturation drops to 89 at night. Have sleep apnea. This the cause? Daytime is 94-95
Home sleep study said moderate sleep apnea w/severe oxygen saturation <70 & in-clinic study said no sleep apnea & perfect oxygen levels. Which right?
I am 65 years old and have a consistent oxygen saturation of 89 while sleeping. Is this considered obstructive sleep apnea? I am about 50 lbs overweight. If I lose the extra weight will it improve my sleep apnea?
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