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SPO2 report interpretation
#1
SPO2 report interpretation
Hi All,

I'm new to this board, not new to sleep apnea though.
Can I ask - my Contec CMS50 report - can someone walk me through the numbers? I have not used this watch in years and thought my apnea was now mild but I am worried that is is not..
Many thanks
John
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#2
RE: SPO2 report interpretation
What type of CPAP machine are you using?

Your oximeter does not detect apnea, only drops in O2. Those O2 drops can be caused by apnea or other health issues.
MacBook Air (2017, Intel) | macOS Monterey (12.4) | OSCAR v1.4.0 | VM = Win10 (19043.1446) |
An Apnea Board Monitor (ABM) is a member of the Apnea Board Forum who volunteers to help watch the forum, and keep things running smoothly.
Membership in the Advisory Members group does not imply medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.

Installing OSCAR on a Mac
Organizing your OSCAR charts
Attaching images and files for the forum
OSCAR Help
OSCAR Data Interpretation
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#3
RE: SPO2 report interpretation
HI - I am not on a CPAP machine at all..

Just concerned that my apnea may have worsened - thats why I ask if someone can help explain the oximetry report numbers to me...
 image attached...


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#4
RE: SPO2 report interpretation
88 is the point they would start worrying about. You have a FEW spikes that low but nothing to worry about. Those are brief and can be caused by the sensor losing contact for a couple seconds.

Again, I don’t see any problems with your O2.
Apnea (80-100%) 10 seconds, Hypopnea (50-80%) 10 seconds, Flow Limits (0-50%) not timed  Cervical Collar - Dealing w DME - Chart Organizing
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#5
RE: SPO2 report interpretation
Thanks for those comments - however the AHI number of 29 is classified as "moderate" and once it reaches 30 this is severe?

The software I am using classes any drop of 4% or more as an "event" and any breathing stop of 10s as an event, I think..

Although I am not sure how the software knows I am not breathing??? Is this from the dropping SPO2 numbers? 
appreciate any comments
image attached.
John


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#6
RE: SPO2 report interpretation
If you are referring to the 29.3 next to "Index", that is not your AHI (Apnea Hypopnea Index).  It's showing how many O2 de-saturation events you averaged per hour for the period recorded (sometimes called Oxygen De-saturation Index, or ODI).  That 4% drop for 10 seconds.
That number will likely be quite different every day.

I would suggest you discuss these concerns with your Dr.  They may order a sleep test, or other tests to rule out other health conditions that can cause desaturations.  Your O2 numbers don't look too bad but you would need to compare it over a longer period of time (several days or more) to see what's normal for you.  That one night may have just been an oddity.
MacBook Air (2017, Intel) | macOS Monterey (12.4) | OSCAR v1.4.0 | VM = Win10 (19043.1446) |
An Apnea Board Monitor (ABM) is a member of the Apnea Board Forum who volunteers to help watch the forum, and keep things running smoothly.
Membership in the Advisory Members group does not imply medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.

Installing OSCAR on a Mac
Organizing your OSCAR charts
Attaching images and files for the forum
OSCAR Help
OSCAR Data Interpretation
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