Adjusting an S9 to go above 20cm

[brain_cloud]

Just got back from another titration study. I hear the last pressure they used was 21. The tech also said there is a way to allow the machine to go above the normal limit of 20. I don't see it in the clinician's menu. I guess it's a more invasive adjustment. Anyone know how to do it? I hate to have to go over to Norco for anything.

[Wulfman]

Just got back from another titration study. I hear the last pressure they used was 21. The tech also said there is a way to allow the machine to go above the normal limit of 20. I don't see it in the clinician's menu. I guess it's a more invasive adjustment. Anyone know how to do it? I hate to have to go over to Norco for anything.

Your tech is an idiot. There are no CPAPs that will go over 20 cm. (Unless something is "broken" in them)
At those pressures, you need to have a Bi-Level/Bi-PAP machine.


Den

[brain_cloud]

Your tech is an idiot. There are no CPAPs that will go over 20 cm.

Hmmm. Guess I'm more gullible in the early morning. She said it three or four times and with such an air of certitude.

[cpapernewbie]

cannot help but laugh at Wulfman's comment.

If this is a certified RT, how can she passed the test?

[Goofproof]

Maybe switch to leaded fuel and bump the timing ten degrees. The sure fire way to tell if they are lying, look at their lips, if they are moving they are lying. anyone over 15Cm , needs a data capable Bi-PAP. Jim

[billbolton]

Your tech is an idiot. There are no CPAPs that will go over 20 cm. (Unless something is "broken" in them)

Most xPAP systems will actually generate genuine flow rates at up to about 26cms H20 at sea level, though there is no direct setting to do that. This is so they are able to work hard enough to deliver a genuine 20cms H20 flow rate with the lower ambient air pressure at 2400 Metre altitude (the maximum altitude setting on most flow generators).

With older manual altitude adjustment flow generators it was possible to set the altitude to something higher than the actual altitude band (there are usually 4 bands covering a cumulative 600 metres of altitude each) to get a sea level pressure above 20cms H20, however, with the current generation of flow generators which pretty much all have automatic altitude adjustment, that is no longer easily possible.

Cheers,

Bill

[brain_cloud]

Your tech is an idiot. There are no CPAPs that will go over 20 cm. (Unless something is "broken" in them)

Most xPAP systems will actually generate genuine flow rates at up to about 26cms H20 at sea level, though there is no direct setting to do that. This is so they are able to work hard enough to deliver a genuine 20cms H20 flow rate with the lower ambient air pressure at 2400 Metre altitude (the maximum altitude setting on most flow generators).

Cheers,

Bill

So you're saying I should take my machine up a mountain, set it to 20 up there, then it'll be all souped-up at the lower elevations? That rocks!

[fisamo]

Your tech is an idiot. There are no CPAPs that will go over 20 cm. (Unless something is "broken" in them)

Most xPAP systems will actually generate genuine flow rates at up to about 26cms H20 at sea level, though there is no direct setting to do that. This is so they are able to work hard enough to deliver a genuine 20cms H20 flow rate with the lower ambient air pressure at 2400 Metre altitude (the maximum altitude setting on most flow generators).

Cheers,

Bill

So you're saying I should take my machine up a mountain, set it to 20 up there, then it'll be all souped-up at the lower elevations? That rocks!

No... It's true that he's saying that if you take your machine up a mountain, it will altitude adjust, causing it to move air at a rate that would cause a higher pressure at sea level. The problem is, when you bring it back to sea level, it will auto-adjust (again) back to sea-level, producing the output it did before you took it up the mountain.

[billbolton]

So you're saying I should take my machine up a mountain, set it to 20 up there, then it'll be all souped-up at the lower elevations?

No, I'm not saying that.

Most contemporary flow generator models sense altitude automatically. They don't save the altitude adjustment, it is measured dynamically for the altitude at the time of each operation of the flow generator.

Cheers,

Bill

[brain_cloud]

Your tech is an idiot. There are no CPAPs that will go over 20 cm. (Unless something is "broken" in them)

Most xPAP systems will actually generate genuine flow rates at up to about 26cms H20 at sea level, though there is no direct setting to do that. This is so they are able to work hard enough to deliver a genuine 20cms H20 flow rate with the lower ambient air pressure at 2400 Metre altitude (the maximum altitude setting on most flow generators).

Cheers,

Bill

So you're saying I should take my machine up a mountain, set it to 20 up there, then it'll be all souped-up at the lower elevations? That rocks!

No... It's true that he's saying that if you take your machine up a mountain, it will altitude adjust, causing it to move air at a rate that would cause a higher pressure at sea level. The problem is, when you bring it back to sea level, it will auto-adjust (again) back to sea-level, producing the output it did before you took it up the mountain.

But I'm sure we can figure out a way around this. How about set it on the mountain then put it in an airtight bag, take it back down still in the bag.

[brain_cloud]

OK, I see a hole in that. I suppose if worst comes to worst, I'll just have to move to a higher elevation.

[billbolton]

Basically, if you need a titration pressure higher than 20cms H20, the usual solution is to to move to a BiPAP flow generator, as they have a higher maximum pressure.

Cheers,

Bill

[brain_cloud]

I think I'd rather move up into the mountains than buy a whole new machine. There are plenty more health benefits to mountain living than just getting extra-high pressure out of your CPAP machine.

Say, you kind of look like a mountain man with that beard. Ever see "Jeremiah Johnson"?

[DreamDiver]

I think I'd rather move up into the mountains than buy a whole new machine. There are plenty more health benefits to mountain living than just getting extra-high pressure out of your CPAP machine.

Say, you kind of look like a mountain man with that beard. Ever see "Jeremiah Johnson"?

By moving to the mountains, the machine will adjust the pressure, but it will end up being equivalent to whatever you set it to (as if you were at sea level) because the air is thinner at higher altitude. In essence it's only working harder to provide the correct pressure - not higher pressure. Hence, you would gain no extra benefit by moving to the mountains other than the excellent scenery and rarified air.

While the flow generator is probably capable of maintaining a decent 20cm flow, the S9 really isn't made for this. Exhale Pressure Relief (EPR) is limited to a maximum of 3cm H20. If your titration is higher than 15, as goofproof suggested, you'll be much happier with a bilevel machine, if only for the the more improved control over exhale relief pressure. At that pressure why not get the S8 VPAP Auto 25 BiLevel Machine? It is a tried and tested machine that will deliver the pressures you need, and it works with ResScan, so you can track your results.

[brain_cloud]

The problem with having all those smilies available is that people start to depend upon them.