You should use your middle or index finger for a pulse oximeter. These fingers are generally recommended because they provide the most accurate readings.
- The middle finger is often considered the best choice due to its larger blood vessel size.
- The index finger is a close second and is also a suitable option.
Avoid using your thumb or pinky finger as they have smaller blood vessels, which can make it harder for the pulse oximeter to get an accurate reading.
Important:
- Make sure the pulse oximeter feels snug but comfortable on your finger.
- If you have any nail polish on, remove it before using the device, as it can interfere with the reading.
- Keep the pulse oximeter in place for at least a minute, or longer if the reading keeps changing.
