The index (pointer) finger or middle finger of either hand are typically best for pulse oximeter readings. These fingers receive more blood flow than the ring or pinky fingers, leading to more accurate readings.
Here are a few key points to consider when choosing a finger for your pulse oximeter:
- Blood flow: Fingers with good blood circulation provide more accurate readings.
- Nail polish: Remove any nail polish or artificial nails from the chosen finger, as these can interfere with the sensor.
- Positioning: Ensure the finger is properly positioned in the oximeter sensor for a comfortable and secure fit.
Research suggests that the right middle finger may provide the highest SpO2 values. However, individual results may vary, and it's generally recommended to use whichever finger feels most comfortable and provides a stable reading.
