I've been told OTC pulse oximeter can be 4% off. So it could be 4% lower than indicated or 4% higher. Kind of hard to purchase an FDA approved one.
Tb: I do agree w/SpriggsLinda.I usually encourage people to go to any pharmacy or online.I tell them it d/n need to be costly. Seek an oximeter that will measure BOTH oxygen and pulse/hbm-heartbeats per minute. I am in a facility and mine matches exactly my nurses every day. So, I d/n see any 4% "off". PatV
I have bought many pulse ox. Business & personal. The $4000.00 vs $19.00.
The $19.00 was portable.
Both read the same.
No issues over 4+
Years.
4% seriously walking in your house can change it that much. Even the ones at the doctors can be off. They only calibrate them like once a year. Theres programs you can put on your phone to check pulse so you can compare them and see how close they are to what you got counting your pulse.
I have 2 pulse oximeters. I find the two that I have does the same thing. You can ask your Dr or Nurse,
I have a homedics one and I believe it’s off not sure the percentage but it reads about 92 and 94 and at the doctors’ office it reads 98 and sometimes 99.
We never share your personal information with anyone.