What are the normal parameters for a finger pulse oximeter?

Finger pulse oximeters are primarily used to measure arterial oxygen saturation and pulse rate. The arterial oxygen saturation of a normal, healthy individual should be between 95% and 100%. The normal resting heart rate range for healthy adults is typically between 60 and 100 beats per minute. If concerns arise, it is recommended to seek medical advice in advance. Detailed analysis is as follows:

The oxygen saturation level in a normal, healthy individual should be between 95% and 100%. If oxygen saturation drops below 95%, it may indicate mild hypoxia; if it falls below 90%, this may suggest the body is in a severely hypoxic state, which requires attention and timely medical intervention.

The normal resting heart rate range for healthy adults is typically between 60 and 100 beats per minute. Athletes or individuals who exercise regularly may have slightly lower resting heart rates, which is generally a sign of good cardiac function. If the heart rate remains consistently above 100 beats per minute or below 60 beats per minute, especially when accompanied by symptoms such as dizziness, fatigue, or chest pain, further medical evaluation may be needed.

Factors such as low finger temperature, poor circulation, nail polish, or artificial nails may affect the accuracy of finger pulse oximeter readings. Therefore, during use, ensure fingers are warm and circulation is adequate, while avoiding external interfering factors. If abnormal readings occur, it is recommended to perform multiple measurements or interpret the results in conjunction with clinical symptoms.