Daniel Gagner wrote:
There are two pressure lines with an APAP machine. It doesn't matter if flex is turned off or on. Flex just eases the transition when exhaling.
This is not correct. Without flex, there's only one pressure line because the pressure doesn't vary during the breath cycle (which is the only time that there are two pressure lines). Perhaps you're confusing the minimum and maximum SETTINGS for the pressure trace in the data.
Daniel Gagner wrote:
With an APAP machine you physically set a high and low pressure if you have flex turned off or not. The only way you get one pressure line on the graph is if you put it in CPAP mode which most(all?)
This is not correct.
Daniel Gagner wrote:
Flex takes those pressure settings and simply eases the exhale pressure depending on what level of flex you have set it to.
Yes, and that pressure variation between inhale and exhale is where the second pressure line in sleepyhead comes from (I used to work with the guy that wrote the program).
Daniel Gagner wrote:
Mine sends out a pressure pulse and determines the level of obstruction. It then does just what is needed to open it up.
This is wrong. The pressure pulse is the machine determining whether your not breathing is because of obstruction or central, nothing more, nothing less. No machine "does just what is needed to open it up", they ALL wait till you start breathing again and then raise pressure if they determined it was an obstructive apnea.
Daniel Gagner wrote:
The range between the high and low setting is for one breath.
This too is wrong. The pressures change over a period of minutes with auto machines, NOT within one breath.
Daniel Gagner wrote:
A Bilevel machine is often just used when the previous two don't work out well for the user. Usually for people who can't seem to tolerate the auto titrating pressure or if they have congestive heart failure or central apnea.
Where ever do you get your "information"??? so much of it is wrong. I've got a bilevel machine, and guess what,
it auto adjusts, just like the apaps you're talking about.Here's a piece of wisdom... Pugsy has *years* of experience.... if she says something you don't think is right, you'd be much better off if you went and did some research before disagreeing with her.