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Does anyone else find that urination causes their SPO2 to drop?
#1
Does anyone else find that urination causes their SPO2 to drop?
This is more of a curiosity than anything else; I only noticed because I'm wearing my sleep monitor when I get up to pee at night, and it vibrates when I start to pee. ?

I wasn't really concerned about this, I assumed it was just a normal physiological response. However, when I Googled it I found an article about the relationship between LUTS (Lower Urinary Tract Symptoms) and Hypoxia and Sleep Apnea. I have all three, but I still think it's a coincidence.

Anyone else experience this?
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#2
RE: Does anyone else find that urination causes their SPO2 to drop?
May be related to this....
https://www.mayoclinic.org/diseases-cond...q-20058084

Not sure a drop in blood pressure might cause a drop in O2, but may be plausible. I've noticed on my O2Ring the amplitude of the pulse bars drops when I pee at night. I believe the pulse bars drop is an indication of the blood perfusion, so perhaps the blood pressure and perfusion are related to cause an O2 drop if the blood doesn't move as it is supposed to(?)
https://my.clevelandclinic.org/health/bo...n-pressure
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#3
RE: Does anyone else find that urination causes their SPO2 to drop?
It"s just false reading from getting up to go pee. There is no reason why SPO2should drop while up and brearhing normally.
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#4
RE: Does anyone else find that urination causes their SPO2 to drop?
Getting up too quickly can cause a drop in blood pressure (Orthostatic hypotension). The drop in blood pressure can cause you to feel lightheaded/faint. You feel lightheaded because of the lack of oxygen in the blood stream. You can be breathing normally when this occurs.

"Low blood pressure can be a sign of good health. However, if it gets too low (hypotension) that could mean that not enough blood is reaching your vital organs, leaving them starved of oxygen."

https://my.clevelandclinic.org/health/ar...gency-care
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#5
RE: Does anyone else find that urination causes their SPO2 to drop?
The simplest answer might be that movement often affects the O2 sensor and you may be seeing the results of dropouts and bad data caused by movement. I sometimes see the same thing when I get up to take my meds and then go back to sleep.
"The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane." -- Marcus Aurelius
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#6
RE: Does anyone else find that urination causes their SPO2 to drop?
Try getting out of bed but, instead of heading to the bathroom, just sit in a chair for a minute or two and checking if your SP02 drops. It might be more related to sitting down after rising from bed.
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#7
RE: Does anyone else find that urination causes their SPO2 to drop?
When bearing down the vagal nerve is stimulated, and your heart rate slows, and blood pressure drops.  Possibly that is causing the O2 sat to go down.  Google "micturition vasovagal syncope."
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