Altitude Adjustment

Jere · Post by **Jere** » Tue Jan 24, 2006 9:53 pm

On Thursday, I am going from DC (300' above seal level) to the Colorado mountains (11,000' above sea level). I know my ResMed Escape 8 has an patient menu option to adjust for altitude. My question is how important it is to actually adjust the machine? Does the higher altitude require my machine to blow harder to emit the same relative pressure?

And for you aeronautical engineers out here just drooling to show what you know, please keep in mind that I am an idiot (at least as far as the physics go), so be gentle.

.

twistedcherokee · Post by **twistedcherokee** » Tue Jan 24, 2006 10:00 pm

The higher in elevation, the less pressure you will have. Where in Co.? I am in Falcon just east of Colorado Springs.

Toby

Jere · Post by **Jere** » Tue Jan 24, 2006 10:10 pm

Breckinridge for 3 days of skiing.

When I am at hight altitude with all tha dry air I am always wishing I had a humidifier for sleeping. This year, with my xpap and heated humidifier, I will have issue licked (must remember heated hose). Finally, a tangible side benefit of xPAP!

.

ozij · Post by **ozij** » Tue Jan 24, 2006 11:22 pm

My question is how important it is to actually adjust the machine? Does the higher altitude require my machine to blow harder to emit the same relative pressure?

Jere, if you don't adjust the machine you will be undertreated, and therefore prone more apneas.

O.

Goofproof · Post by **Goofproof** » Tue Jan 24, 2006 11:52 pm

That would be another reason to have a Manometer. So you could adjust for altitude. Some high end machines auto adjust for altitude. Your manuals that come with the machine may help.

john5757 · Post by **john5757** » Wed Jan 25, 2006 12:23 am

11,00' Ft is very high for a CPAP to run at. The ResMed Escape 8 has limit of 8500' I have used my Spirit Auto the S7 at 8,300' with no trouble. I found that my maximum pressure pressure needs does drop about .8cm at that altitude but that just me. At 11,000 the Fixed CPAP with out auto Altitude adjustment is going to be way off calibration and that would would be the case with my old RemStar and it going to run much warmer trying to get enough air volume at the set pressure for that that altitude.

twistedcherokee · Post by **twistedcherokee** » Wed Jan 25, 2006 7:03 pm

Should rise not drop. I am at 6300 ft and have to adjust 1 cm for that altitude. Have fun sking.

Toby

chrisp · Post by **chrisp** » Wed Jan 25, 2006 8:20 pm

Escape does not have auto altitude adjustment. Looks like you will need to do it manually.

Read the directions or just tweak a few xtra cms into it.

:twis ted:

Jere · Post by **Jere** » Wed Jan 25, 2006 9:33 pm

Yep - the Escape 8 definately needs to be adjusted manually. Thanks for the advice!
.

john5757 · Post by **john5757** » Wed Jan 25, 2006 9:34 pm

[quote="twistedcherokee"]Should rise not drop. I am at 6300 ft and have to adjust 1 cm for that altitude. Have fun sking.

Toby

Jere · Post by **Jere** » Wed Jan 25, 2006 9:42 pm

I usually have a terrible time sleeping at high altitude. After a few days I start craving for my near sea-level home town. Must be the lack of O2!

Machine	Mask

Machine	Mask