AHI Graph

cjordan525 · Post by **cjordan525** » Sat Sep 18, 2010 5:44 pm

It seems that lately my AHI graph doesn't cover the entire night. Does anyone else have that happen? I download my info every morning when I get up. My sleep time is between 22:00-3:30.

billbolton · Post by **billbolton** » Sat Sep 18, 2010 5:48 pm

cjordan525 wrote:It seems that lately my AHI graph doesn't cover the entire night.

What part(s) of the night does it cover then?

You need to tell us more about your perceived problem

Cheers,

Bill

cjordan525 · Post by **cjordan525** » Sat Sep 18, 2010 5:54 pm

Sorry, Last night for example, I started treatment around 21:30 and slept until 3:30. All the other graphs have readings the whole time. The AHI graph starts around 23:45 and ends at 2:00?

LoQ · Post by **LoQ** » Sat Sep 18, 2010 6:29 pm

cjordan525 wrote:Sorry, Last night for example, I started treatment around 21:30 and slept until 3:30. All the other graphs have readings the whole time. The AHI graph starts around 23:45 and ends at 2:00?

Is it possible that all of your events were between 23:45 and 2:00?

cjordan525 · Post by **cjordan525** » Sat Sep 18, 2010 7:58 pm

There are some events during that time but I am thinking it is misssing something. Could there be events not just during that time period? Shouldn't there be a line even if it only is flat.

LoQ · Post by **LoQ** » Sat Sep 18, 2010 8:09 pm

cjordan525 wrote:Shouldn't there be a line even if it only is flat.

It depends upon what range your configurations are set to show. Maybe you need to check those to make sure they aren't chopping off part of the range so that it isn't being displayed.

cjordan525 · Post by **cjordan525** » Sat Sep 18, 2010 8:27 pm

The range is set for eight hours. All the other graphs show the entire time I was on the machine.

LoQ · Post by **LoQ** » Sat Sep 18, 2010 8:36 pm

cjordan525 wrote:The range is set for eight hours. All the other graphs show the entire time I was on the machine.

No, I'm talking about the Y-axis. What is the lower and upper end of the range for AHI over on the left edge of the graph?

cjordan525 · Post by **cjordan525** » Sat Sep 18, 2010 8:42 pm

Oh sorry, it is between 0 and 4.5

LoQ · Post by **LoQ** » Sat Sep 18, 2010 9:13 pm

I think you may have to post a snapshot, then. It's difficult for me to imagine what could be wrong without seeing it.

Can you post a picture?

dave21 · Post by **dave21** » Sat Sep 18, 2010 10:14 pm

AHI graph will not show any data when it's at 0, until it starts to increase to something greater than 0 and at that point it will start recording. This is normal practice in ResScan.

Thanks
Dave

Komodo · Post by **Komodo** » Sun Sep 19, 2010 6:34 am

cjordan525 wrote:It seems that lately my AHI graph doesn't cover the entire night. Does anyone else have that happen? I download my info every morning when I get up. My sleep time is between 22:00-3:30.

You're not the only one.
I have the same problem on a fairly regular basis. It does all sorts of crazy things, like starting before I had started using my vpap, or continuing after I've shut down. One of the best was one night when I only slept for an hour, got up for two hours and then went back to bed. When I checked the graphs, all the other graphs showed the gap except the AHI graph, which showed I slept through the entire night.

While it IS annoying, I don't lose any sleep over it. (pun intended )

Guest · Post by **Guest** » Sun Sep 19, 2010 7:17 am

This is by design - if you think about it, AHI shows how many apneas and hypopneas you have PER HOUR. If you have an apnea or hypopnea then switch machine off for 20 mins it will still show an AHI line for up to the point where you reach the end of that hour then should go back to zero. So if the machine is off for a while it will still show that you had some apneas for that hour.

Thanks
Dave

dave21 · Post by **dave21** » Sun Sep 19, 2010 7:20 am

Last post was from me - didn't store login cookie for some reason.

Thanks
Dave

cjordan525 · Post by **cjordan525** » Sun Sep 19, 2010 7:41 am

LoQ wrote:I think you may have to post a snapshot, then. It's difficult for me to imagine what could be wrong without seeing it.

Can you post a picture?

I don't know how to take a snapshot of it. The only options I have are XPS and PDF. Can't get neither to upload to photo bucket.

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Machine	Mask

Additional Comments: Airmini, Medistrom Pilot 24, CMS 60C Pulse Oximeter, ResScan 6

Machine

Additional Comments: Running AirSense 10 AutoSet CPAP, previously S9 AutoSet and S8 AutoSet Spirit