What is Pulse Oximeter...???
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Pulse oximetry is a noninvasive method for monitoring a person's oxygen saturation. Peripheral oxygen saturation readings are typically within 2% accuracy of the more desirable reading of arterial oxygen saturation from arterial blood gas analysis.
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A pulse oximeter is a tiny device that usually slides over your fingertip or clips on your ear lobe and uses infrared light refraction to measure how well oxygen is binding to your red blood cells. Oximeters report blood oxygen levels via an oxygen saturation measurement called peripheral capillary oxygen saturation, or SpO2.
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