Averaging the total number of events by the number of hours on the machine yields AHI.
It is an average. [One, 7, 14, or 30 days, depending on the period set on your sleep report]
Mathematical rounding occurs --up or down.
One event is unlikely to alter that, especially if period is at 30 (the default)
(Period can be set on the first line of the sleep report screen--no need to enter clinical menu)
You could keep holding your breath until it works, but you might pass out . . .
But go right ahead.
You have my blessing.
How do I "simulate" an apnea event to see if my CPAP works
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chunkyfrog
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Re: How do I "simulate" an apnea event to see if my CPAP works
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Last edited by chunkyfrog on Sat Jan 11, 2020 12:10 pm, edited 1 time in total.
Re: How do I "simulate" an apnea event to see if my CPAP works
If you'd read that post pinned to the top of the front page in the forum, the one that says NEWBIES, READ THIS BEFORE POSTING" before you posted, you'd have the answer to your above question.
You don't have the knowledge to fake out your machine. "Faith" has nothing to do with it.
Get OSCAR
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Re: How do I "simulate" an apnea event to see if my CPAP works
Actually just one event might not alter the number shown on the LCD screen depending on if things are rounded up or down.N24 wrote: ↑Sat Jan 11, 2020 11:46 amCan you explain a little more what you mean by "Using the software and zooming in up close".
I'm looking at the LCD screen and it measures events within 1 decimal place. So if I'm averaging 4.1 events per hour, one additional event should alter that number. Since that number isn't changing it means that it doesn't count events within a certain time range of startup, or it fails to count events like 'not breathing'. Which is why I'm wondering what it does count.
The overall average actually goes to hundredths or 2 decimal points but the machine itself rounds up or down only to the first or tenth decimal point in terms of what is shown on the screen.
Software showing detailed data allows a person to zoom in and see specific time frames and specific events.
See the first topic in the Announcements section "newbies please read" to find out more about the available software.
Also...if you were using the ramp feature when you tried to fool the machine then nothing gets flagged anyway.
ResMed machines don't use event flow sensors of any kind during any ramp time. You could have 20 real apnea events during ramp and the machine won't flag them. It's just how ResMed machines work.
Now Respironics machines...they will flag stuff that happens during ramp.
If you weren't using ramp...I suspect that if you use the software available you would see that 50 second event counted and if you compared the AHI average shown in the software (which goes to hundredths) to the tenths on the LCD screen you will see it just got rounded down instead of up.
The machine isn't 100% perfect in its reporting but it's pretty darn close and no where near BS numbers.
There's nothing to be gained by doing what you are doing trying to fool the machine though.
The machine can and will flag awake breathing abnormalities of any kind because it doesn't have a clue if you are asleep or not.
It is what it is but if anything it over reports and not under reports the numbers.
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Re: How do I "simulate" an apnea event to see if my CPAP works
To the OP:
There's no need to do this! Presumably, you've already been diagnosed. If the machine is working your AHI should be under five (preferably way under 5). This is all the confirmation that you need!
There's no need to do this! Presumably, you've already been diagnosed. If the machine is working your AHI should be under five (preferably way under 5). This is all the confirmation that you need!
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chunkyfrog
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Re: How do I "simulate" an apnea event to see if my CPAP works
I suspect the poster's sleep report is set at the default (30 days).palerider wrote: ↑Sat Jan 11, 2020 12:08 pmIf you'd read that post pinned to the top of the front page in the forum, the one that says NEWBIES, READ THIS BEFORE POSTING" before you posted, you'd have the answer to your above question.You don't have the knowledge to fake out your machine. "Faith" has nothing to do with it.
This happens every time the power is interrupted.
Changing averages of 30 days of data would be impossible to safely achieve.
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Re: How do I "simulate" an apnea event to see if my CPAP works
I totally forgot this little tidbit. If the report hadn't been changed to one day, from the default 30 day, then for sure we wouldn't expect the on screen data to change just from one little added event.chunkyfrog wrote: ↑Sat Jan 11, 2020 12:14 pmI suspect the poster's sleep report is set at the default (30 days).
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ChicagoGranny
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Re: How do I "simulate" an apnea event to see if my CPAP works
Relax and learn to use OSCAR. You won't get any education with a breath-holding/display-reading exercise, but you can get a big education with OSCAR.
Yup, every night, every nap for about nine years.
Welcome and good luck!
Re: How do I "simulate" an apnea event to see if my CPAP works
The 1 additional event for the night will be divided by the number of hours slept..It will make an insignificant change to your nightly AHI. As mentioned before..make sure your sleep report is set to 1 day.N24 wrote: ↑Sat Jan 11, 2020 11:46 amThanks for the constructive answer, Pugsy.
Can you explain a little more what you mean by "Using the software and zooming in up close".
I'm looking at the LCD screen and it measures events within 1 decimal place. So if I'm averaging 4.1 events per hour, one additional event should alter that number. Since that number isn't changing it means that it doesn't count events within a certain time range of startup, or it fails to count events like 'not breathing'. Which is why I'm wondering what it does count.
For the rest of the gallery offering snarky comments: I'm sure your faith in technology is paying off. Just keep dreaming.
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Re: How do I "simulate" an apnea event to see if my CPAP works
Ten here.ChicagoGranny wrote: ↑Sat Jan 11, 2020 12:34 pmYup, every night, every nap for about nine years.
Welcome and good luck!
Get OSCAR
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Re: How do I "simulate" an apnea event to see if my CPAP works
Good info - thanks much!Pugsy wrote: ↑Sat Jan 11, 2020 12:11 pmActually just one event might not alter the number shown on the LCD screen depending on if things are rounded up or down.N24 wrote: ↑Sat Jan 11, 2020 11:46 amCan you explain a little more what you mean by "Using the software and zooming in up close".
I'm looking at the LCD screen and it measures events within 1 decimal place. So if I'm averaging 4.1 events per hour, one additional event should alter that number. Since that number isn't changing it means that it doesn't count events within a certain time range of startup, or it fails to count events like 'not breathing'. Which is why I'm wondering what it does count.
The overall average actually goes to hundredths or 2 decimal points but the machine itself rounds up or down only to the first or tenth decimal point in terms of what is shown on the screen.
Software showing detailed data allows a person to zoom in and see specific time frames and specific events.
See the first topic in the Announcements section "newbies please read" to find out more about the available software.
Also...if you were using the ramp feature when you tried to fool the machine then nothing gets flagged anyway.
ResMed machines don't use event flow sensors of any kind during any ramp time. You could have 20 real apnea events during ramp and the machine won't flag them. It's just how ResMed machines work.
Now Respironics machines...they will flag stuff that happens during ramp.
If you weren't using ramp...I suspect that if you use the software available you would see that 50 second event counted and if you compared the AHI average shown in the software (which goes to hundredths) to the tenths on the LCD screen you will see it just got rounded down instead of up.
The machine isn't 100% perfect in its reporting but it's pretty darn close and no where near BS numbers.
There's nothing to be gained by doing what you are doing trying to fool the machine though.
The machine can and will flag awake breathing abnormalities of any kind because it doesn't have a clue if you are asleep or not.
It is what it is but if anything it over reports and not under reports the numbers.
Re: How do I "simulate" an apnea event to see if my CPAP works
Sadly it often isn't. I see that I have a lot to learn and I suspect most of my events are central apneas.
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chunkyfrog
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Re: How do I "simulate" an apnea event to see if my CPAP works
Stick around.
There are many here who have had to teach ourselves (and each other)
all those little things our control freak providers refuse to provide.
There are many here who have had to teach ourselves (and each other)
all those little things our control freak providers refuse to provide.
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