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First, pause and take a deep breath. After we breathe in, our lungs fill with oxygen, which is distributed to our red blood cells for transportation throughout our bodies. Our bodies want a variety of oxygen to perform, and wholesome individuals have a minimum of 95% oxygen saturation all the time. Conditions like asthma or COVID-19 make it harder for bodies to absorb oxygen from the lungs. This results in oxygen saturation percentages that drop to 90% or beneath, a sign that medical attention is needed. In a clinic, medical doctors monitor oxygen saturation utilizing pulse oximeters - these clips you place over your fingertip or ear. But monitoring oxygen saturation at dwelling a number of times a day could help patients regulate COVID symptoms, for example. In a proof-of-principle research, University of Washington and University of California San Diego researchers have shown that smartphones are able to detecting blood oxygen saturation ranges down to 70%. This is the bottom worth that pulse oximeters ought to be capable to measure, as advisable by the U.S. |
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