I've just had my 3rd night in a row with zero AHI. I'm getting suspicious. So, when I look at the flow data, I see some flat spots that I think should have been scored as central apnea. There is no flow limitation at that spot. The respiratory rate graph takes a short dive from about 15 bpm to 5 bpm.
I'm running my S9 VPAP Auto in S mode. If I am reading the manual correctly, it does not score CA's in that mode. Am I reading that right?
If that's true, seems to me like I should go to auto mode and open up the IPAP/EPAP a couple of cm-H2O and let it seek -- plus it would score CA's. (Maybe set my floor EPAP to 9; and my top IPAP to 16)
See present settings in my profile. We have some really smart folks on the forum -- and I appreciate a check of my reading comprehension.
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Could try holding your breathe for 15 seconds to force an event and ensure it is scored. You should be able to force an obstructive event or a central event if you understand the mechanics of each.