sue60 wrote: Does anyone think I should I start adjusting the pressure settings or have another sleep study?
if it were me, I'd try setting the min pressure to 10, the max to 12, and epr to 1, or off, preferably.
you appear to be having great huge series of central
apneas, perhaps caused by too high a pressure and over ventilation caused by the EPR, which causes you to blow off more co2 than if you don't use it, and this can depress your respiratory drive.... it's the same thing that happens if you breath really heavily and then hold your breath, for while, you're great, but then the co2 builds up and you just HAVE to breath more.... if you've blown off too much co2, due to the pressure and EPR combo, then you stop feeling the need to breath.... and you get cycles like what you showed.
other things can cause it, like congestive heart failure and brain abnormalities, but then that would probably have shown up on your first sleep test, which you said was clear of centrals.
go here and request a clinical manual:
http://apneaboard.com/adjust-cpap-press ... tup-manual you need to go down to section 3, and do it by email.
Get OSCAR
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.