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  2. Hemoglobin - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin

    The oxyhemoglobin has significantly lower absorption of the 660 nm wavelength than deoxyhemoglobin, while at 940 nm its absorption is slightly higher. This difference is used for the measurement of the amount of oxygen in a patient's blood by an instrument called a pulse oximeter .

  3. Oxygen–hemoglobin dissociation curve - Wikipedia

    en.wikipedia.org/wiki/Oxygen–hemoglobin...

    The oxygen–hemoglobin dissociation curve, also called the oxyhemoglobin dissociation curve or oxygen dissociation curve (ODC), is a curve that plots the proportion of hemoglobin in its saturated (oxygen-laden) form on the vertical axis against the prevailing oxygen tension on the horizontal axis. This curve is an important tool for ...

  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. Methemoglobinemia - Wikipedia

    en.wikipedia.org/wiki/Methemoglobinemia

    The SaO2 calculation in the arterial blood gas analysis is falsely normal, as it is calculated under the premise of hemoglobin either being oxyhemoglobin or deoxyhemoglobin. However, co-oximetry can distinguish the methemoglobin concentration and percentage of hemoglobin. [ 3 ]

  6. USMLE Step 3 - Wikipedia

    en.wikipedia.org/wiki/USMLE_Step_3

    USMLE Step 3 exams are delivered online but administered only at Prometric testing centers, which emphasize identity verification and security. Examinees must provide official photo identification and fingerprints as well as pass both metal detector and physical inspection every time they wish to enter the examination room.

  7. Is It Safe to Use Expired Vitamins? The Truth About Vitamin ...

    www.aol.com/vitamins-expire-nutritionists-weigh...

    When you buy a bottle of vitamins from a nutrition store, you’ll probably notice a best-by date on the bottom of the jar. But that inscribed number isn’t a hard-and-fast rule—there is some ...

  8. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    If arterial/venous is not specified for an acid–base or blood gas value, then it generally refers to arterial, and not venous which otherwise is standard for other blood tests. [ citation needed ] Acid–base and blood gases are among the few blood constituents that exhibit substantial difference between arterial and venous values. [ 6 ]

  9. Bill Clinton Reveals the Name His Grandkids Call Him — and ...

    www.aol.com/lifestyle/bill-clinton-reveals-name...

    The former President of the United States and his wife Hillary Clinton are grandparents to their daughter Chelsea's three kids