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  2. Oakland clinic gets medical device maker to disclose risk of ...

    www.aol.com/news/oakland-clinic-gets-medical...

    In a study published in February, they found that Black patients’ blood oxygen readings on pulse oximeters were on average 6% higher than the actual blood oxygen levels measured in their ...

  3. An essential medical device fails people of color. A clinic ...

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    Inaccurate pulse oximeter readings are more common in Black patients than non-Black ones. It was a problem that could be ignored — until COVID-19 hit. An essential medical device fails people of ...

  4. Michigan AG presses FDA to toughen stance on racial bias in ...

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    The flaw in pulse oximeter readings. Pulse oximetry became widely used in the 1980s in the United States, and was initially tested predominantly on white patients.

  5. Pulse oximetry - Wikipedia

    en.wikipedia.org/wiki/Pulse_oximetry

    A pulse oximeter probe applied to a person's finger. A pulse oximeter is a medical device that indirectly monitors the oxygen saturation of a patient's blood (as opposed to measuring oxygen saturation directly through a blood sample) and changes in blood volume in the skin, producing a photoplethysmogram that may be further processed into other measurements. [4]

  6. Oxygen saturation (medicine) - Wikipedia

    en.wikipedia.org/wiki/Oxygen_saturation_(medicine)

    Pulse oximetry is a method used to estimate the percentage of oxygen bound to hemoglobin in the blood. [10] This approximation to SaO 2 is designated SpO 2 (peripheral oxygen saturation). The pulse oximeter is a small device that clips to the body (typically a finger, an earlobe or an infant's foot) and displays its reading, or transfers it to ...

  7. Photoplethysmogram - Wikipedia

    en.wikipedia.org/wiki/Photoplethysmogram

    [1] [2] A PPG is often obtained by using a pulse oximeter which illuminates the skin and measures changes in light absorption. [3] A conventional pulse oximeter monitors the perfusion of blood to the dermis and subcutaneous tissue of the skin. Finger pulse oximeter. With each cardiac cycle the heart pumps blood to the periphery. Even though ...

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  9. Respiratory compromise - Wikipedia

    en.wikipedia.org/wiki/Respiratory_compromise

    A pulse oximeter works by beaming red and infrared light through capillaries. The amount of red and infrared light transmitted provides an approximate measure of oxygen in the blood. The oximeter reading is based on the color of the blood: oxygenated blood is a brighter red than deoxygenated blood, which appears as bluish purple.

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