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A pulse oximeter is a non-invasive medical device that measures the oxygen saturation levels (SpO2) in a person’s blood and the pulse rate. The device typically consists of a small sensor that is attached to the end of a finger, toe, or earlobe, and a display screen that shows the readings. The device uses light absorption technology to measure the amount of oxygenated and deoxygenated hemoglobin in the blood and calculates the oxygen saturation levels.
Pulse oximeters are commonly used in hospital settings to monitor patients with breathing difficulties or those receiving supplemental oxygen therapy. They are also used in sports and fitness to monitor the oxygen saturation levels of athletes during high-intensity activities. Additionally, pulse oximeters can be used in a home setting for monitoring of respiratory and cardiovascular health, especially in patients with chronic conditions such as COPD, asthma, or heart disease.
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