(01-02-2015, 09:16 AM)old82 Wrote: SGEARHART... I have my ramp set at only 5 minutes so can't be of help about the recording of ca's during ramp.
Your machine has an Auto Ramp mode wherein it stays at the Ramp Start Pressure until you fall asleep, before starting to Ramp up the pressure. If you change to Auto Ramp mode, it may eliminate any false CA's which occur before you fall asleep.
If you use ResScan to create several full sleep reports for your doctor, for several nights when your CA Index (average number of central apneas per hour of therapy, while asleep) was over 5.0 and outnumbers your Obstructive Apnea index, I think you may be approved for an ASV titration and an ASV machine.
The reports should include a zoomed-in section of 30 minutes or 10 minutes showing a cluster of central apneas, which might represent Cheyne-Stokes Respiration.