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Posted by Jeff in Idaho on January 10, 2001 at 21:20:16:In Reply to: Just how "bad" is my OSA? posted by Tiggaroo on January 10, 2001 at 18:16:47:
According to a presentation I went to on OSA, an apnea/hypopnea index (AHI) over 5-10/hr (Depending on the expert) is a positive test and anything over 40/hr is severe. Studies show that patients with AHIs over 40 are about 7 times more likely to be involved in an auto accident. I'm sure we've all heard the drastic increase in heart attacks and strokes too.
Oxygen saturations should run in the upper 90's. Anything below 90 becomes more worrisome. It may not sound so bad but the oxygen saturation numbers are plotted on a log scale so a further drop is a drastic drop in oxygen in the blood. Saturations in the 50's and 60's are not compatable with life for very long.
When I had my titration I was given a range of pressures, 11-14 depending on my sleeping position. I don'tknow what the average is though.
Hope this helps.
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