[ProtectOurFreedom]

SpO2 readings on pulse oximeter can jump around a lot and it can be hard to get a good average reading. You have “eyeball” the reading to get an average. Unlike a hospital pulse oximeter, my home devices don’t do any averaging.

Be sure to let the probe stabilize after a period of time — don’t use the initial reading.

Home pulse oximeters are subject to false readings caused by motion. Be sure to keep the hand and fingers completely still while reading.

Consider getting a recording pulse oximeter which will record your data at one second intervals. I use one for my sleep apnea. You can get excellent data during sleep and observe trends. You get almost 29,000 readings during 8 hours of sleep. My “O2Ring” provides summary stats for your sleep period. Here is one sample mobile app sleep report (not my data shown here — this is a bad report!).

[TECTopcat]

yes, were they using one of those cheap oximeters that clamp onto your finger? if so they are noted to be unreliable and a reading of 94 to 89 is not to worry