Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

New/old CPAP user question about elevation change
#1
I have recently started using CPAP after 10+ years of non compliance and have a question concerning elevation changes.

I have a brand new APEX XT Fit Sense machine which is supposed to "sense" elevation changes and make adjustment automatically, to 8000' above sea level.

What does the machine actually do to adjust to higher elevation?

I am going to Cusco Peru in May and plan on spending several nights at 11,000'. What can I do to the machine (if anything) when I sleep above 8000'?

Thanks in advance for any recommendations.
Post Reply Post Reply
#2
Do nothing but sleep well and enjoy Peru. VERY Beautiful country.
Yesterday is history; Tomorrow is a mystery; Today is a gift; Thats why its called "The Present".
Post Reply Post Reply
#3
(03-17-2016, 07:49 AM)hozholla Wrote: What does the machine actually do to adjust to higher elevation?

nothing. modern machines use pressure transducers at the airflow outlet to measure the relative output pressure of the machine and speed up or slow down the fan.

the only side effect is that the thinner the air, the faster the fan has to spin to generate the desired pressure, and at some point, you'll run out of spin.
Post Reply Post Reply


#4
Hi hozholla,
WELCOME! to the forum.!
Better luck to you with your CPAP therapy this time around.
Much success to you.
trish6hundred
Post Reply Post Reply
#5
You'll be fine for just a few nights. You *may* have a few more central events than usual, or have them for the first time, but it will settle once you come back down.

At higher altitudes, the CPAP has to "work harder" to generate the set pressure. Your CPAP will automatically do this up to, as you said, 8000ft. Over that, it will be generating slightly lower than the set pressure. If you were going to be at that height for more than just a few days, you would want to perhaps adjust the pressure upward. But for that time period you will be there, it isn't worth it. And if you have an existing heart condition, don't do it without discussing it with your doctor first.


http://journal.publications.chestnet.org...id=1069275
PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.




Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Smile How do I change the pressure settings on My ResMed S9 William Sleasman 1 17 44 minutes ago
Last Post: Melman
  [Equipment] New user needs help picking ASV machine with great software. Sleepyhead? Others? gtrlum 4 85 Yesterday, 06:24 PM
Last Post: gtrlum
  [Equipment] Filter change time! PaulaO2 58 17,857 06-24-2017, 09:44 PM
Last Post: Mosquitobait
  Future BiPAP user.. Which machine to ask for? Herb 113 4,242 06-20-2017, 10:40 AM
Last Post: SarcasticDave94
  [CPAP] New user Ditner 8 215 06-17-2017, 08:55 PM
Last Post: Ditner
  Dreamstation Bipap user - Thanks, notes, and Followon questions Joboo23 11 446 06-16-2017, 05:25 PM
Last Post: ajack
  Hello from a new BiPAP user Raven87 47 1,527 06-16-2017, 04:39 PM
Last Post: ajack

Forum Jump:

New Posts   Today's Posts




About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.

For any more information, please use our contact form.