pressure difference between IPAP and EPAP

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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1210donna
Posts: 17
Joined: Sat Aug 10, 2013 6:36 pm
Location: Melbourne, Australia
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pressure difference between IPAP and EPAP

Post by 1210donna » Fri Aug 30, 2013 6:44 am

from what I've read, the pressure difference between IPAP and EPAP should be around 3-4 but my difference is consistently around 1.2-1.4

These were the differences so far:

IPAP 8.48
EPAP 7.23
DIFFERENCE OF 1.2

IPAP 6.99
EPAP 5.75
DIFFERENCE OF 1.24

IPAP 8.43
EPAP 7.04
DIFFERENCE OF 1.39

IPAP 7.75
EPAP 6.48
DIFFERENCE OF 1.27

IPAP 8.06
EPAP 6.68
DIFFERENCE OF 1.38

IPAP 7.88
EPAP 6.50
DIFFERENCE OF 1.38

The IPAP is at 15, the setting the machine came with
not sure what the EPAP is set to

any comments?

thanks

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MaskHumidifier
Additional Comments: dx'd with Mixed sleep apnea 2012, dx'd with Ehlers-Danlos IV and Autonomic Neuropathy 2013.
Ever the arty autie

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robysue
Posts: 7520
Joined: Sat Sep 18, 2010 2:30 pm
Location: Buffalo, NY
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Re: pressure difference between IPAP and EPAP

Post by robysue » Fri Aug 30, 2013 6:54 am

1210donna wrote:from what I've read, the pressure difference between IPAP and EPAP should be around 3-4 but my difference is consistently around 1.2-1.4
Your machine (the S9 AutoSet for Her) is an APAP. So it does not have IPAP and EPAP settings. So what exactly are you talking about?
These were the differences so far:

IPAP 8.48
EPAP 7.23
DIFFERENCE OF 1.2
Where are these numbers coming from????
Are these numbers coming from SH's data summary? If so, then they have something to do with what your EPR setting is. And on an AutoSet, those numbers will never exceed 3cm since the max EPR setting is 3.

Can you tell us what your machine's settings are? What's your min pressure? max pressure? and EPR?

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Machine: DreamStation BiPAP® Auto Machine
Mask: Swift™ FX Nasal Pillow CPAP Mask with Headgear
Additional Comments: PR System DreamStation and Humidifier. Max IPAP = 9, Min EPAP=4, Rise time setting = 3, minPS = 3, maxPS=5