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3 Months Until Sleep Study
RE: 3 Months Until Sleep Study
one way to record awakening is to turn the machine off briefly. oscar may combine sessions closer than a minute or two but you can still see the gap in the flow rate. another is to force a larger than usual leak or take a larger than usual inhale. these help when scrolling through the flow rate looking for anomalies but it can be hard to remember what you might otherwise have noted at the time about the awakening. audio and video recorders are useful.
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RE: 3 Months Until Sleep Study
I disconnected my hose upon a wake-up last night and it worked. I had just experienced an OA. Thanks for that recommendation.


I have a question that is probably apparent to the regular person. What is the difference between the median and the 95% stats? From my understanding, the 95% stat is where you are 95% of your sleep. And the median is the average? But this confuses me because my median respiratory rate is 14 whereas the 95% rate is at 18. Seems those numbers should be closer together, no?
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RE: 3 Months Until Sleep Study
median is close but not the same as average. average is weighted by the value of the instances averaged. median is the instance in the middle of a list. if you have a list: 1, 2, 3, 4, 9, 10, 11, 12, 13; average is 7.22 and median is 9 or the middle value (4 instances on either side). the value in the 95th percentile column means 95% of the instances tested/listed were below that value and 5% were above that value.
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RE: 3 Months Until Sleep Study
Thanks!

So what would be more accurate in finding where I spend most of my night as far as respiratory rate where 14 is the median and 18 being 95%?
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RE: 3 Months Until Sleep Study
I suppose it depends on the circumstances but most of the time I don't give much more than a passing glance at anything other than the median stats although I do look at 95% for pressure, flow limitations and I and E time.

edit: re-reading your question, I don't remember my statistics well enough to answer directly and accurately. 95% tells you that most of the night was below that number but doesn't really tell you where you were most of the time. median gives you a central value but doesn't really tell you about duration.

in any event, it's probably an unnecessary level of detail trying to distinguish between rr of 14 vs 18. it's all with a 'normal' range of 12-20 or 25 for a resting adult.
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RE: 3 Months Until Sleep Study
Thanks sheepless. Smile
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RE: 3 Months Until Sleep Study
Sleep on your side? That would be the main one.’I have undiagnosed sleep apnea (5 months to go). I have Cheyne Stokes breathing during the day because of the apnea.

I heard someone did something like get a tennis ball, duck tape it (or attach to a belt) on your lower back - to one side to prevent straining your spine. When you try to roll onto your back you wake up! (still better than hypoxic wake-ups).

Do you wake up with a dry mouth? If so, it means you are mouth-breathing. The body does this as a backup (narrow nasal passages can lead to mouth breathing at night - and opening your mouth increases the likelihood of airway collapse).

Sleeping on your side is the best option for now. Also put a phone, in flight mode, with voice recorder, next to you, overnight. It will be horrific but you can hear what is going on.
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