Thanks for the input, OR.
I knew the system ones did small "experimental" pressure changes, but I wasn't aware that those changes were 1.5 cm. That seems like a large experiment to me.
I'm not sure exactly what I was trying to do.
No, I suppose I do know. Based on the 5-day trial I did in March, my upper pressure limit needs to be around 14 or 15. A very helpful poster looked at my graphs then...oh, that was you!
I believe the idea I had yesterday was that I'd put the machine in auto mode and then gradually increase the upper pressure limit and see if my body tolerated that better than letting the pressure go from, say, 9.0-15.0 all at once.
I'm not sure that actually makes any sense, though.
Do you know if people typically use straight CPAP pressure at pressures as high as 14? I don't need that much pressure, really, except for the middle-of-the-night period where I get lots more apneic events.
I wish I could adjust that algorithm.
I have had about 3 days total where I woke up feeling well since I started CPAP therapy, so I'm wanting to adjust the settings, but it seems like my spine isn't tolerating that very well.
Graph below is from 2nd day of 5-day auto trial in March. I woke up feeling great that day aside from some torso pain, but by day 5, I was walking around stooped over and stopped the trial and went back to CPAP at 8.0 cm.
(04-10-2016, 09:45 AM)OpalRose Wrote: The sawtooth pattern is normal for the system one APAP's. It will go up approximately 1.5cm and back down. Are you trying ATrial to find a better pressure? The range of 9 to 10.5 isn't wide enough for the machine to determine a better pressure. Try 9-12, it's won't go higher than needed.