Hi, I just received my results back from my original sleep study and my titration test. Here is the info...

Female, 35 yrs old, 5'4", 271 pounds

SLEEP ARCHITECTURE
TIB (min) - 433     TST (min) - 397     Sleep Eff. Index - 92%
Stage W - 8%     Stage N1 - 3%     Stage N2 - 64%     SWS N3 - 16%
Sleep latency - 6 min     WASO - 30 min     REM latency - 121 min
Stage R - 17%

DISORDERED BREATHING PROFILE
Obstructive apneas - 38      Hypoapneas - 72      Central apneas - 8
Snoring (scale 1-10) - 8      RERA - 39     AHI - 18      REM-AHI - 70      RDI - 24
Baseline wake SPO2 - 98%      Mean sleep SPO2 - 96%
Low sleep SPO2 - 70%      Time in SPO2 < 88% - 11 min
Longest AH event - 46 secs

Arousal index - 7     Resp. arousals - 49
Avg sleep HR in NREM - 66      in REM - 77

The conclusions from the titration is "sucessful resolution of obstructive sleep apnea with nasal CPAP at +12cm of water with C-FLEX of 3."

OK, so I understand that I have moderate sleep apnea, since my AHI is 18. Should I be concerned with the low sleep SPO2? What is WASO? Also, what does the C-FLEX of 3 mean?  I think that I have everything else figured out....  Thanks for your help.
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TinaRae-
My understanding is that WASO stands for time aWake After Sleep Onset.

The low SPO2 reading is worth remembering if you need motivation to stick with CPAP, but CPAP should prevent your O2 from dropping that low, especially since you have high baseline O2 and good average O2 levels. Should you find yourself in need for motivation, I would point out (as you may already know) that your apnea is severe (AHI of 70) during REM sleep.

C-FLEX represents a feature on a certain brand of CPAP machines. C-FLEX, as I understand it provides a sligtly lower exhalation pressure. The number is supposed to represent the amount by which your exhale pressure is lower than your inhale pressure. In your case, with your CPAP set at 12 with a C-FLEX of 3 means your exhale pressure should be about 9. This feature is supposed to make it easier to adjust to CPAP, especially for people who need a higher pressure. This same feature is available in another manufacturer's line where it is referred to as EPR (I believe for Exhalation Pressure Relief).

Hope this helps.
Wishing you good luck and smooth sailing with your CPAP.

Bill

your 'disordered breathing profile': is that from the first study, or when using cpap?  coz it doesn't look very resolved to me...and yes, the oxygen level is a concern (if this is with cpap something is not right...or you may need to use oxygen also).  If this was before cpap, then using cpap will hopefully improve it...do you have the results of your breathing with cpap? (or just the statement that it was successfull)

your sleep architecture looks really good though!!

All of the stats were from the first study without the CPAP titration. The results that I received from the titration study didn't have the same breakdown. The tech said that my snoring was a problem and every time she thought she had it worked out, I would start snoring again.  At the +12cm pressure, my snoring was eliminated, I had abundance of REM and slow-wave sleep and my AHI improved to 0.4. My lowest O2 saturation was 96%.  I am really excited about starting the CPAP. I hope this will help tremendously with all of my sleep related issues.