Newbie needs help interpreting data

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
User avatar
fogman
Posts: 17
Joined: Sun Apr 11, 2010 8:11 am
Location: NC on the edge of Smokey Mtn. Natl. Park

Newbie needs help interpreting data

Post by fogman » Tue Jul 06, 2010 6:37 am

I need some help interpreting some of the data from my S9 Autoset this morning. The max pressure is set at 12, and the mim at 4.

Pressure 11.8
Leak 10.8 L/min
AHI 1.2
AI 1.1
Central 0

My main question is "What does Pressure indicate?" Is this the maximum pressure the machine generated during the night? average pressure? what? I am thinking that I should raise both the minimum and maximum settings.

User avatar
GumbyCT
Posts: 5778
Joined: Fri Sep 14, 2007 6:22 pm
Location: CT
Contact:

Re: Newbie needs help interpreting data

Post by GumbyCT » Tue Jul 06, 2010 6:48 am

fogman wrote:I need some help interpreting some of the data from my S9 Autoset this morning. The max pressure is set at 12, and the mim at 4.

Pressure 11.8
Leak 10.8 L/min
AHI 1.2
AI 1.1
Central 0

My main question is "What does Pressure indicate?" Is this the maximum pressure the machine generated during the night? average pressure? what? I am thinking that I should raise both the minimum and maximum settings.
It is hard to tell what IS going on just from numbers. Numbers are an Avg. to get an Avg. some were higher and some lower. But when? Why?

Without the software it's like walking in the dark.

If you have any troubles catching your breath early on, I would raise the min. to 7 or 8. But keep an eye on the leaks.
So many people have trouble breathing at 4cm.

_________________
Humidifier: HC150 Heated Humidifier With Hose, 2 Chambers and Stand
Additional Comments: New users can't remember they can't remember YET!
BeganCPAP31Jan2007;AHI<0.5
I have no doubt, how I sleep affects every waking moment.
I am making progress-NOW I remember that I can't remember
;)
If this isn’t rocket science why are there so many spaceshots?
Be your own healthcare advocate!

User avatar
KatieW
Posts: 1672
Joined: Sun Sep 27, 2009 11:07 am
Location: southern AZ

Re: Newbie needs help interpreting data

Post by KatieW » Tue Jul 06, 2010 9:38 am

The Pressure on your lcd screen is the 95 centile pressure--which means 95% of the time your machine was on, you were at 11.8 or below.

Leaks on the lcd screen is the 95 centile value--yours were a little high, at 10.8 liters/minute but while your cpap was able to compensate (it can compensate up to 24 l/m), leaks can still disturb your sleep, or cause apneas, so it's best to try and minimize them. I try and keep my from 0-4 l/m.

I just posted on another thread about leaks and pressure settings:

viewtopic/t53530/Problems-late-night-leaks.html

Here is a link to data management on the S9:

http://www.resmed.com/uk/assets/documen ... ow_eng.pdf

_________________
Mask: Pico Nasal CPAP Mask with Headgear
Additional Comments: Resmed AirCurve 10 ASV and Humidifier, Oscar for Mac
KatieW