(06-26-2016, 05:01 PM)vsheline Wrote: Hi cpap4uars,
When we first start using CPAP it often helps to use the max A-Flex (3). But after a couple weeks our breathing muscles will get stronger and we may not need as much exhalation pressure relief.
An A-Flex setting of 3 gives the max exhalation pressure relief, but during inhalation (which is when we have the Flow Limitations which can cause RERAs) the pressure also drops earlier if using an A-Flex of 3.
After the first couple weeks of CPAP use, if we have UARS it may be more comfortable to have the high inhalation pressure last longer, which it will do if we are using an A-Flex setting of 1.
ResMed EPR doesn't act the same; with ResMed the high inhalation pressure lasts until we start breathing out. But on Philips Respironics machines the high inhalation pressure starts dropping the earliest with max A-Flex, before we have completely finished inhaling, and starts dropping the latest with an A-Flex of 1 (not off).
All this information is very helpful. I'm impressed by how knowledgeable all the members here are! I am willing to bet a lot of you know wayyyyy more than the doctors do!