Definition of Pulse Oximeter

In the past, doctors examined patients' fingernails, lips and/or skin color to assess the level of oxygen circulating in the blood. Today, the pulse oximeter is an advanced diagnostic tool that has improved this aspect of patient care. The pulse oximeter became popular in the United States in the late 1980s, and its usage continues to increase. A report by Frost and Sullivan reveals that United States sales of oximeters was worth $201 million in 2006.

Definition

• A pulse oximeter is a small medical device that measures the oxygen saturation of a patient's blood. This device helps healthcare practitioners to continually observe the patient's oxygen saturation.

Features

• The pulse oximeter consists of a computerized monitor and a lighted sensing probe that clips onto the patient's index finger or ear lobe with a plastic clip.

Function

• Pulse oximeters are used in a variety of patient care settings. It is commonly used during anesthesia in the operating room. The normal readings range from 95 to100 percent nanometer (nm).

Considerations

• Earlier research studies showed that nail polish affected the accuracy of pulse oximeter readings. Later studies show no interference due to advance technology in the oximeters.

Benefits

• The pulse oximeter is a simple, easy to use, portable, noninvasive and accurate diagnostic tool.