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Question about inspiratory time and expiratory time
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shutterbug sue Offline

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Posts: 54
Joined: Mar 2012

Machine: ResMed S9 AutoSet
Mask Type: Hybrid
Mask Make & Model:
Humidifier: ResMed H5i
CPAP Pressure: 11-14
CPAP Software: SleepyHead

Other Comments: Mirage Liberty hybrid full face mask & CMS-50D pulse oximeter

Sex: Female
Location: Missouri

Post: #1
Question about inspiratory time and expiratory time
Should the average times on these be about the same? The reason I ask is because my average expiratory time is always just a little bit longer. I was wondering if maybe I should turn off the EPR because the lower pressure was maybe letting my airway narrow just a little bit so it takes longer to breath out?
04-24-2012 03:25 PM
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PaulaO2 Offline
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Posts: 8,107
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #2
RE: Question about inspiratory time and expiratory time
In theory, it shouldn't. The exhale pressure is no greater than 3cm from the inhale. What number do you have the EPR set to? Range is 1-3.

I have no clue what mine is. I need to check and see what it is like without it.

PaulaO2
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04-24-2012 03:48 PM
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shutterbug sue Offline

Preferred Members

Posts: 54
Joined: Mar 2012

Machine: ResMed S9 AutoSet
Mask Type: Hybrid
Mask Make & Model:
Humidifier: ResMed H5i
CPAP Pressure: 11-14
CPAP Software: SleepyHead

Other Comments: Mirage Liberty hybrid full face mask & CMS-50D pulse oximeter

Sex: Female
Location: Missouri

Post: #3
RE: Question about inspiratory time and expiratory time
The EPR is set on 2. It was on 3 but I turned it down a few nights ago because someone said you really don't need it and should turn it off if you don't need it. I'm going to turn it down to 1 after a week and then a week after that I'll turn it off completely.
04-24-2012 04:52 PM
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zonk Offline

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Posts: 7,947
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #4
RE: Question about inspiratory time and expiratory time
EPR is comfort thing some prefer to use while others don,t. some liken it to mini-bilevel effect but its nothing of the sort as in bilevel the difference in ipap and epap is constant. ResScan pressure graph shows 2 pressure and the distances between them stay the same while the pressure graph of cpap/apap shows only one pressure regardless whether EPR is on or off. EPR can be suspended during an apnea and it depend how quick inhalation resume as exhalation end as different machines follow different algorthim.
04-25-2012 04:51 AM
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