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Pulse Oximeter is a pain-free test that evaluates the oxygen saturation level in the blood. It is fast to detect little changes in how effectively oxygen is being carried to the extreme farthest from the heart, which includes the legs and the arms.
The Pulse Oximeter is a tiny device that attaches to a body part, like a toe or an earlobe. It’s mostly used on a finger, and it’s sometimes used in a critical care setting such as emergency rooms or hospitals. Some pulmonologists may also use it in the office.