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SCANNING VITALS WITH INFRARED:
A popular and remarkable example of light emitting diagnostics is THE PULSE OXIMETER – which measures oxygen saturation in peripheral arterial blood by illuminating the skin and measuring the light absorption of oxygenated (oxyhemoglobin) and deoxygenated (reduced hemoglobin) blood using infrared light . The Pulse Oximeter is an electronic device that clips onto a patient’s finger to measure heart rate and oxygen saturation in his or her red blood cells—the device is useful in assessing patients with lung disease. In the first months of the pandemic surge, waves of empty shelves included the widespread purchase of the Oximeter as part of standard home-scanning equipment. This reflects a significant part of "the Covid Culture"- comprising the demand for personal safety measures (beyond the holy trinity of masking, distancing and hand hygiene). The public confidence in this affordable device reflected on its commercial access and data scanning accuracy. In addition, more and more drug store shelves continue to stock up on self-check devices including the hand-held infrared Thermometers, Blood Pressure Cuffs and Spirometers.