Unlike an oxymoron (äksəˈmôrˌän: a combination of contradictory words), a (pulse) oximeter (äkˈsimidər) is a sensing technique to measure oxygen saturation in a person’s peripheral (capillary) blood (SpO2). Using pulses in the capillaries of the tested area, the noninvasive measurement helps to evaluate a variety of medical conditions that affect the function of the heart […]