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[Diagnosis] graph
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rml313 Offline


Posts: 11
Joined: Dec 2014

Machine: remstar auto a-flex system one
Mask Type: Full face mask
Mask Make & Model: mirage liberty
Humidifier: system one heated
CPAP Pressure: 7/11
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: independence iowa

Post: #1
the graph on sleepyhead AHI has two lines top and bottom the bottom line has my average AHI what does the top line show?
01-19-2015 02:21 PM
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quiescence at last Offline

Advisory Members

Posts: 753
Joined: Nov 2014

Machine: REMstar System One with Autoflex
Mask Type: Full face mask
Mask Make & Model: Quattro AirFit F10
Humidifier: yes typical setting = 4
CPAP Pressure: 5-13 Autotritrating CPAP
CPAP Software: SleepyHead EncoreBasic

Other Comments: CMS-50F Plus oximeter /w SPO2 Assistant software. Avowed mouth-breather switching to nose-breathing

Sex: Male
Location: US

Post: #2
RE: graph
a little hard without more of an explanation.
probably you are looking at the AHI for the whole night (single number) and then a graph of the hourly AHI going up and down thru the night on the bottom.
true AHI is total events divided by the total time (in hours). 27 events in 6 hours yields and AHI of 4.50.

At the very top of graphs, I think that one is the AHI calculated over the period that is displayed only. If I zoom into a 1 hour and 55 minute section, and count 14 events in that section, AHI there is 14 divided by 1.9 hours = 7.36.

Dedicated to QALity sleep.
You'll note I am listed as an Advisory Member. I am honored to be listed as such. See the fine print - Advisory Members as a group provide advice and suggestions to Apnea Board administrators and staff concerning Apnea Board operation and administrative policies. Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.
(This post was last modified: 01-19-2015 06:16 PM by quiescence at last.)
01-19-2015 06:13 PM
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PaytonA Offline
Wiki Editor

Posts: 2,955
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #3
RE: graph
Could it be AHI and RHI?
01-19-2015 06:15 PM
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