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Respiratory Disorders  (Expert Forum)
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low oxygen while sleeping
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low oxygen while sleeping

by grannyshan, Mar 10, 2003 12:00AM
What causes a persons onygen level to be less than 80 while sleeping?  How dangerous is this?

by National Jewish, Apr 20, 2003 12:00AM
During sleep people breath more shallow and less often.  This is normally not a problem, but when there is a lung or heart problem this can cause the oxygen level to be low during sleep.  Normally the oxygen level in the blood should be 80 to 100 mm Hg at sea level.  The normal oxygen saturation of the blood is 92% to 94% at sea level.  When the oxygen level is chronically low the workload on the heart is increased.  This causes the heart to enlarge.  Once the heart is enlarged it cannot be reversed.  Supplemental oxygen is used to prevent the enlargement of the heart.

Without heart or lung disease, a low oxygen level while sleeping can simply be the result of a sleep disorder.  This is especially true if the oxygen is low only while sleeping.  Obstructive sleep apnea is a sleep disorder in which the airway does not fully open during sleep.  Other health problems can develop when the low oxygen level is not treated.  Your doctor can help you find the cause of your low oxygen level.  Once the cause is treated the oxygen level should return to normal so that other health problems don’t develop.
Member Comments (4)

by starion, Mar 10, 2003 12:00AM
If you oxygen level is lower than 88 for ANY prolonged time, you need supplemental O2.  At any level lower than 88, your body is NOT getting enough O2 & you are putting a strain on your heart & other organs & systems in your body.  Your doctor should prescribe O2; there are many who wear O2 while sleeping for just this reason.  Others just need it while moving, while some need it 24 hours/day, 7 days/week.
The doctor should explain all of this to the patient.
Aloha,
Starion

by grannyshan, Mar 10, 2003 12:00AM
But what causes this to happen?  My husbands goes down into the 70's and has attended a sleep clinic and they say he does not have sleep apnea but yet has all the symptoms.  The dr. says she does not know why this is happening.  He has had several heart test and they are ok.

by Lady Lightbringer, Mar 29, 2003 12:00AM
Has your husband been checked for pulmonary embolism? Blood clots in the lungs may be causing his reduced O2 level.

Embolism can happen with little to no symptoms and is often overlooked or misdiagnosed. However, without treatment it can be fatal.

A VQ scan, pulmonary angiogram or CT Spiral scan should be done to find out for sure.

Good luck to you and your husband!

by fiery81, May 26, 2008 11:23PM
A related discussion, help for low oxygen levels in obese people was started.

by simoncat, Jun 12, 2008 08:57AM
A related discussion, nighttime low oxygen level was started.

by rich37, Jun 25, 2008 11:37AM
A related discussion, pulse oximeter was started.

by crissygirl, Jan 06, 2009 09:25PM
A related discussion, is this normal for me was started.

by msliz681, Aug 09, 2009 01:08PM
A related discussion, Oxygen was started.
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