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2. Normal Pulse Oximetry Ranges and How to Take a Reading - AOL

   www.aol.com/normal-pulse-oximetry-ranges-reading...

   Normal Ranges. Most people have a normal resting pulse oximetry reading for oxygen saturation (SpO2) between 95% and 100%. This shows that your blood has an appropriate amount of oxygen. People at ...

3. Pulse oximetry - Wikipedia

   en.wikipedia.org/wiki/Pulse_oximetry

   Pulse oximetry is a noninvasive method for monitoring blood oxygen saturation by measuring the change in absorbance of two wavelengths of light through tissue. It is useful for patients with respiratory or cardiac problems, pilots, mountain climbers, and COVID-19 patients, but it has some fundamental limitations and safety risks.

4. Oxygen saturation (medicine) - Wikipedia

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

   Oxygen saturation is the fraction of oxygen-saturated haemoglobin in the blood. It can be measured by pulse oximetry, which estimates the percentage of oxygen bound to haemoglobin (SpO2). Normal values are 96-100%, and below 90% indicates hypoxemia.

5. Hypoxemia - Wikipedia

   en.wikipedia.org/wiki/Hypoxemia

   Hypoxemia is an abnormally low level of oxygen in the blood, which can cause hypoxia in the tissues and organs. It can be caused by various factors, such as low ventilation, ventilation/perfusion mismatch, shunts, diffusion impairment and low PO2.

6. FDA panel recommends more diversity in pulse oximeter trials

   www.aol.com/news/fda-panel-examine-ways-better...

   The longstanding problem of pulse oximeters providing less-accurate readings for people with dark skin tones got another look Friday from a panel of experts for the US Food and Drug Administration.

7. Photoplethysmogram - Wikipedia

   en.wikipedia.org/wiki/Photoplethysmogram

   A photoplethysmogram (PPG) is an optically obtained plethysmogram that can be used to detect blood volume changes in the microvascular bed of tissue. Learn how PPG can be used to monitor heart rate, respiration, depth of anesthesia, blood pressure, and more, and how it differs from conventional pulse oximetry.