Acceptable O2 level

[PatOnCPAP]

Hi Everyone,

I am using the Wellue SleepU Wrist Sleep Blood Oxygen Monitor to measure my O2 levels at night, and getting readings as low as 90%. Is 90% still an acceptable level?
Or would this be an indication of a flow limitation perhaps during the night?

TIA

[Julie]

88% is the accepted line, but if you're only getting 90% most of the time I would want to look into it more.

[PatOnCPAP]

Aah ok thanks Julie! So I need to be looking into the duration. So far its only that low in a short period of the evening.

[Pugsy]

Probably should be asking your doctor what he thinks as to what is a reading that would be concerning because a lot of factors come into play when it comes to how low is a concern or not.
Daytime baseline readings, altitude, general overall health, how long at the lower level, etc.
In the US the 88% rule is what the cut off line is for maybe needing to add O2 and I don't remember how long one needs to be at 88% to qualify. A very brief dip to 88 probably isn't in itself enough.

It is normal to have a 3 to 4 % drop in O2 levels just from being asleep vs awake numbers....so again the baseline numbers also are a factor.

Best to ask your doctor because he/she knows your own personal situation which is the biggest factor.

[Wulfman...]

Hi Everyone,

I am using the Wellue SleepU Wrist Sleep Blood Oxygen Monitor to measure my O2 levels at night, and getting readings as low as 90%. Is 90% still an acceptable level?
Or would this be an indication of a flow limitation perhaps during the night?

TIA

Obviously you have access to the Internet....Look it up!

https://duckduckgo.com/?q=acceptable+ox ... fhp&ia=web

https://duckduckgo.com/?q=oxygen+level+ ... fhp&ia=web

https://www.inogen.com/blog/safe-oxygen-levels/

https://www.medicalnewstoday.com/articles/321044

https://gruasyaparejos.com/en/pulse-oxi ... aturation/

https://www.emedicinehealth.com/what_is ... cle_em.htm

https://www.medicinenet.com/what_are_bl ... e_abg_test

Den

.

[PatOnCPAP]

Hi Everyone,

I am using the Wellue SleepU Wrist Sleep Blood Oxygen Monitor to measure my O2 levels at night, and getting readings as low as 90%. Is 90% still an acceptable level?
Or would this be an indication of a flow limitation perhaps during the night?

TIA

Obviously you have access to the Internet....Look it up!

https://duckduckgo.com/?q=acceptable+ox ... fhp&ia=web

https://duckduckgo.com/?q=oxygen+level+ ... fhp&ia=web

https://www.inogen.com/blog/safe-oxygen-levels/

https://www.medicalnewstoday.com/articles/321044

https://gruasyaparejos.com/en/pulse-oxi ... aturation/

https://www.emedicinehealth.com/what_is ... cle_em.htm

https://www.medicinenet.com/what_are_bl ... e_abg_test

Den

.

Thanks for the links. Yes had already checked on some of these. Perhaps I should have posted my whole history with sleep studies, CPAP usage and surgery. I felt the advice from the folk on here would hold some deeper info than just finding a % on a website.

[Janknitz]

My apple watch shows blood oxygen levels as low as 80, but typically in the early evening when I am wide awake and not perceiving any breathing issues. I just don't think these are trustworthy readings. If I want to deliberately take a blood oxygen reading on the watch it's really fiddly to do so, so I'm not sure how these regular readings can be that accurate.

While asleep, with my CPAP, my readings are mostly in the mid-90's and even some hundreds.

[Wulfman...]

Hi Everyone,

I am using the Wellue SleepU Wrist Sleep Blood Oxygen Monitor to measure my O2 levels at night, and getting readings as low as 90%. Is 90% still an acceptable level?
Or would this be an indication of a flow limitation perhaps during the night?

TIA

Obviously you have access to the Internet....Look it up!

https://duckduckgo.com/?q=acceptable+ox ... fhp&ia=web

https://duckduckgo.com/?q=oxygen+level+ ... fhp&ia=web

https://www.inogen.com/blog/safe-oxygen-levels/

https://www.medicalnewstoday.com/articles/321044

https://gruasyaparejos.com/en/pulse-oxi ... aturation/

https://www.emedicinehealth.com/what_is ... cle_em.htm

https://www.medicinenet.com/what_are_bl ... e_abg_test

Den

.

Thanks for the links. Yes had already checked on some of these. Perhaps I should have posted my whole history with sleep studies, CPAP usage and surgery. I felt the advice from the folk on here would hold some deeper info than just finding a % on a website.

All of us users have are our own experiences. When I had my in-lab sleep study in March of 2005, my O2 levels were in the 60s........then they hooked me up to the titration machine and started cranking up the pessure to find a good pressure for me. Once I had completed my study, I decided that was the absolute best sleep I had had in many years and I decided I WOULD make this therapy work. Unfortunately, the pressure my sleep doctor prescribed was several centimeters above what my sleep study had determined. Once I got my own machine, I reset the prescribed pressure (18 cm) down to 10 cm so I could actually sleep at a reasonable pressure without massive leaking. A week into my therapy my sleep doctor ordered an overnight oximetry test. That shut him up1 So, I left my machine at 10cm. for one year before experimenting on my own. I also acquired an APAP machine about that time to also experiment with ranges of pressure. I had come up with a fixed pressure of 12 cm......and the use of the APAP in a range of 10 - 15 cm confirmed that........so 12cm is what I've used until 2018 when I bumped itup to14 cm.

Early on, I had been informed that the 88% number was the minimum. But, when I have had doctors' appointments since then, my O2 numbers are always in the mid to upper 90s.

I have always advocated that users take control of their own therapy as soon as possible

Den

.