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

High Altitude CPAP
#1
A question just occurred to me. I spend about 4 weeks a year at about a week at a time at an altitude of around 5200 feet. Shhh are there any changes that need to be made as a result of the altitude or are there any things that I should look out for?

I have searched the forum somewhat and it looks like above 8500 feet there might be some pressure adjustment to make up for less oxygen per cubic liter of air. The pressure itself is self regulation since it is the relative not the absolute pressure.

Best Regards,

PaytonA

Admin Note:
PaytonA passed away in September 2017
Click HERE to read his Memorial Thread

~ Rest in Peace ~
Post Reply Post Reply



Donate to Apnea Board  
#2
Operating altitude: Sea level to 2,591 m .... 8500 ft
http://www.resmed.com/au/assets/document...ac_eng.pdf
Post Reply Post Reply
#3
Possible different settings needed for humidity. With the location change, you may find the setting you use to be a bit off what is needed at the new location.
*I* am not a DOCTOR or any type of Health Care Professional.  My thoughts/suggestions/ideas are strictly only my opinions.

"Only two defining forces have ever offered to die for you. Jesus Christ and the American Soldier. One died for your Soul, the other for your Freedom."
Post Reply Post Reply
#4
Like zonk said, you won't need any adjustment. The machines now self-adjust up to a certain elevation. After that, it's a matter of doing some math. But at 5K feet, you're covered so no sweat.

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
#5
I used mine around 8,000 ft for about a week with no problems except for my whizzing after a walk!
Post Reply Post Reply



Donate to Apnea Board  
#6
At 5200 feet some people will notice a small increase in central events. An excellent article based in the Rocky Mountains suggests that the average number of central events at this altitude would be around 7 per hour compared with less than 5 per hour at a lower altitude. At 7100 feet it would be an average of over 19 central events per hour. Therefore you may notice a small increase in your AHI.
http://www.ncbi.nlm.nih.gov/pubmed/22171199

The likely explanation for this is that the reduction in Oxygen levels induces relative overbreathing (hyperventilation) which increases the chance of the Carbon Dioxide level dropping below the CO2 apnea threshold and causing central events. This is a similar principle (without the low O2) to CPAP induced central events or Complex sleep apnea.
Ian


Post Reply Post Reply
#7
I also noticed at a lower elevation the machine also get quieter:-) I live at 1226m, and it is noisier than at 400m.
Post Reply Post Reply
#8
(03-19-2014, 10:10 AM)Hun Wrote: I also noticed at a lower elevation the machine also get quieter:-) I live at 1226m, and it is noisier than at 400m.

Interesting observation. Maybe the pump needs to run a little harder to achieve the same back pressure.

PaytonA

Admin Note:
PaytonA passed away in September 2017
Click HERE to read his Memorial Thread

~ Rest in Peace ~
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  [Treatment] Still high AHI, strange Sleepyhead results avoidthelava 6 186 Yesterday, 07:55 AM
Last Post: Sleeprider
  High flow rate? - another unwell feeling, O2 dropping and quit breathing MyronH 18 382 06-18-2018, 09:03 AM
Last Post: MyronH
  Altitude-induced Sleep Apnea b.e.wilson 6 213 06-17-2018, 10:21 PM
Last Post: ShaunBlake
Smile Unable settle ongoing AHI Variation low - high ICEMAN 22 494 06-16-2018, 01:32 AM
Last Post: jaswilliams
  Elevated Hypopnea But Everything Else is Good. But AHI is High as a Result Akhenaten33 3 183 06-10-2018, 08:26 PM
Last Post: Sleeprider
  [Diagnosis] High AHI (16) and wake several times Linnea 35 1,565 05-30-2018, 09:05 PM
Last Post: sheepless
  [CPAP] Still have a high AHI, don't know what is happening allanri 24 740 05-29-2018, 09:01 AM
Last Post: allanri

Forum Jump:

New Posts   Today's Posts




About Apnea Board

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