Just to repeat what the others said:
EPR is a comfort feature. It stands for "exhale pressure relief". What it does is the machine detects when you are about to exhale and it drops the pressure down until you start the inhale then it brings it back up. Respironics' exhale relief is there x-FLEX.
The numbers are how far to drop it down. Your profile says your average is 12. So if you have the EPR set to 3, you inhale that 12 but exhale against 9.
Off, Ramp Only, & Full time - Off means the EPR is off completely. Ramp only means the EPR is only working during the ramp time but is off after the ramp is done (and by then the user is asleep). Full Time means it is on both during ramp and after.
Patient means the ability to set the EPR setting is on the main screen vs having to access the clinician menu to access. The rest is the setting made within the clinician menu and cannot be changed by the patient on the main menu (unless they know how to access it like you do).
Some people feel the EPR does not help them and they don't use it. Some have said it actually caused them to have more events. Others say it helps them to breathe against their high pressures so they have it set to 3. What you set it to is strictly a personal preference.
I've tried it without and did fine but found it was taking me slightly longer to fall asleep. I have mine set to 2, Full time (I don't use ramp feature anyway). In the clinician menu, I do not have it set to "Patient" since I don't need to change it depending on the night and how I feel. This means the EPR screen is not visible on Home Screen menu.
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Paula already did a great job of outlining the options. I do recommend that you request the Clinician Manual, which you can do through the forum (see the Private Files and Links section). This manual will explain how to get to the clinician section on your machine to change these settings. It does a horrible job of actually explaining what these settings mean, what they do, etc., so just work through it. If I remember right, there is also a setting that is something like "Response" with "Fast" and "Medium" as options. I've played with it and can't tell the difference.
Like many people have commented, this is a comfort setting. Some people have found that it does affect their leak rates, so there can be a therapy impact, but it's more what feels the best to you. Keep in mind, what feels best today may not be the best a few months from now. Humidity settings, hose temperature settings (if you're using the Climate Line hose), ramp settings, etc. can all make your CPAP use fit your comfort level. Worst case, if you're not using your xPAP the therapy is definitely affected.
The clinician manual shows all of these settings and how to modify them. If you have more questions, you know where to find us.
Hi Curious55, Yeah what Paula02 said!
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