Patients with covid-19 who don’t need immediate hospital attention but are at high risk of developing serious symptoms are to be given pulse oximeters to use at home to reduce the risk of serious deterioration, The BMJ has learnt ( BMJ, published 27 October 2020). Pulse oximeters, or pulse ox, measure the amount of oxygenated blood (SpO2) in your body, giving medical professionals an idea of how much oxygen your body is carrying to vital organs and tissues.
Collecting data on oxygen levels is crucial because people with covid-19 may suffer from "silent hypoxia", a dangerous condition in which they do not outwardly appear to be short of breath, but are confirmed to be so through a pulse oximeter test.
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