Post-CPAP Oximetry Results Interpretation

Hi everyone,

I started CPAP therapy a few months ago. At the time of my initial sleep study, it was reported that I had 37 minutes of sleep < 90% oxygen sat. Someone on another forum suggested I repeat the overnight oximetry test while using my CPAP machine, to confirm that the low oxygen sat issue had been resolved by CPAP therapy.

I went ahead and did just that - results of the repeat overnight oximetry are attached. Would anyone be able to help me interpret the results? From my layman's view of the numbers, it seem to report that I had 0.2% time < 90% saturation, which sounds pretty good to me. If I'm understanding that right, it would translate to less than a minute < 90% sat during the night.

Thanks in advance for any help!

That's a very good result.

Franko39 wrote: ↑

Sun Jun 30, 2024 11:00 am

Someone on another forum suggested I repeat the overnight oximetry test while using my CPAP machine, to confirm that the low oxygen sat issue had been resolved by CPAP therapy.

Did that person have any reason to think you had a lung dysfunction?

Your doctor should interpret the results for you. To my eye, this all looks good. You have a few brief desats that take you below 90, which is inconsequential.

ChicagoGranny wrote: ↑

Sun Jun 30, 2024 12:30 pm

That's a very good result.

Franko39 wrote: ↑

Sun Jun 30, 2024 11:00 am

Someone on another forum suggested I repeat the overnight oximetry test while using my CPAP machine, to confirm that the low oxygen sat issue had been resolved by CPAP therapy.

Did that person have any reason to think you had a lung dysfunction?

Sorry, I missed this reply!

That person didn't have any reason to suspect that I had lung function, but had advised that I err on the side of caution and confirm that CPAP therapy has indeed resolved my low O2 sat (As 37 minutes < 90% O2 on my original sleep study was pretty horrible).