Pulse oximeter readings unreliable to assess COVID-19 pneumonia severity across ethnicities

Pulse oximeter measurements of blood oxygen levels appear to be unreliable to assess the severity of COVID-19 pneumonia across different ethnicities, according to new data published in the European Respiratory Journal.Pulse oximeters provided a false reading of nearly 7% higher among mixed-ethnic individuals with COVID-19 compared with just over 3% among white individuals with COVID-19.

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