Pressure
Question:
My most recent study (1/2 study) called for a setting of 11. Which I tried for a week. Then the office assistant faxed a scrip for 13, one more week then 15 and now at 18. Still no wonderful nights sleep, dragging and the rest. My full face mask is not a problem. I have asked for and am awaiting an answer on getting a autopap. Just a shot. Any thoughts? And what’s this with the office assistant making these decisions? Is it safe jumping to these levels?
Response:
"res0ok91" <Jim.F…@verizon.net> wrote: >My most recent study (1/2 study) called for a setting of 11. Which I tried >for a week. Then the office assistant faxed a scrip for 13, one more week >then 15 and now at 18. Still no wonderful nights sleep, dragging and the >rest. My full face mask is not a problem. I have asked for and am awaiting >an answer on getting a autopap. Just a shot. Any thoughts?
It sometimes takes several weeks for the effects to become apparent, I think you may be expecting too much, too soon. Patience is the byword here. >And what’s this with the office assistant making these decisions? Is it >safe jumping to these levels?
I assume that your sleep doctor is approving these changes. That said, the amount of increase does seem unusual. I’d ask for another appointment with your sleep doctor to see what’s going on. Tom
Response:
Of course, I know that pressure is set by doctor after a sleep study……but I was wondering …..what is a high pressure and what is a low pressure?……..what are the parameters for pressure???? Is it 8 to 20? More or less? My pressure was set at 11…….where does that fall in the scheme of things?? Just wondering……no problems…….thanks —
Response:
On Mon, 11 Nov 2002 18:19:25 -0500, "Janet" <jan…@wctel.net> wrote: >Of course, I know that pressure is set by doctor after a sleep >study……but I was wondering …..what is a high pressure and what is a >low pressure?……..what are the parameters for pressure????
It’s "cm of water" (grams per square centimeter). >Is it 8 to 20? More or less?
Usual CPAPs go 4-20. There are some really potent machines that go up to 30. You get around 50… the machine breathes you and not the other way around (it’s a critical care ventilator, not a CPAP). >My pressure was set at 11…….where does that fall in >the scheme of things??
IIRC, somebody did a chart of that… hopefully they will speak up.
Response:
"Janet" <jan…@wctel.net> wrote: >Of course, I know that pressure is set by doctor after a sleep >study……but I was wondering …..what is a high pressure and what is a >low pressure?……..what are the parameters for pressure????
Pressure is measured in centimeters of water column (cmH2O), it’s the distance that water will be pushed up a tube by a given pressure. >Is it 8 to 20?
Most common CPAPs can produce between four and twenty. >More or less? My pressure was set at 11…….where does that fall in >the scheme of things?? Just wondering……no problems…….thanks
It’s probably "middling", I started at ten, then was moved up to twelve. Tom
Response:
> IIRC, somebody did a chart of that… hopefully they will speak up.
You could be thinking of the one that i did some time ago that showed the relationship (or lack thereof) between pressure and apnea severity….which can be found on the alt.support.sleep-disorder website www.anchorweb.com.au/sleepdisorders/pressregraph.htm you can also view a couple of other polls on that have been done over the last year or so — Beth in Australia =================== FAQ for alt.support.sleep-disorder can be found here http://www.anchorweb.com.au/sleepdisorders this site is a work in progress – feel free to submit info/articles
