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2. 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]

3. 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. [1] [2] A PPG is often obtained by using a pulse oximeter which illuminates the skin and measures changes in light absorption. [3]

4. CO-oximeter - Wikipedia

   en.wikipedia.org/wiki/CO-oximeter

   Finger tip carboxyhemoglobin saturation monitor.. A CO-oximeter is a device that measures the oxygen carrying state of hemoglobin in a blood specimen, including oxygen-carrying hemoglobin (O2Hb), non-oxygen-carrying but normal hemoglobin (HHb) (formerly, but incorrectly, referred to as 'reduced' hemoglobin), as well as the dyshemoglobins such as carboxyhemoglobin (COHb) and methemoglobin (MetHb).

5. Walgreens plans to close a significant number of stores. Are ...

   www.aol.com/walgreens-plans-close-significant...

   A spokesperson for Walgreens said that about 25% of the stores were not contributing to the chain's long-term strategy, per the Columbus Dispatch, and as a result, will close a "significant ...

6. What to Know About Walgreens’ Thanksgiving Hours in 2024 - AOL

   www.aol.com/lifestyle/know-walgreens...

   To see if the Walgreens nearest you will be open or closed on Thanksgiving, it's always best to contact the location ahead of time. You can find your store by using the Walgreens store locator tool.

7. Walgreens announces most stores will be closed ... - AOL

   www.aol.com/walgreens-announces-most-stores...

   For the first time in company history, Walgreens has changed its Thanksgiving store hours. Find out details on whether or not pharmacies and stores are open. Walgreens announces most stores will ...