The oximeter placed on his fingertip registered well above the 88 percent blood oxygen saturation level that signals an urgent risk of organ failure and death.

or ear. Or they’ll put a sticky disposable probe on your finger, nose, toe, or forehead. The pulse oximeter uses a special type of light to see how much oxygen is in the red blood cells ...

Pulse oximeters clip onto your fingertip and measure blood oxygen levels using a light that passes through your skin and blood. A sensor on the other side captures the light and calculates oxygen ...

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Months later, in December 2020, Aboelata thought back to her patient as she read a New England Journal of Medicine article showing that pulse oximeters were three times as likely to miss ...

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