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2. Arterial blood gas test - Wikipedia

   en.wikipedia.org/wiki/Arterial_blood_gas_test

   An ABG test measures the blood gas tension values of the arterial partial pressure of oxygen (PaO2), and the arterial partial pressure of carbon dioxide (PaCO2), and the blood's pH. In addition, the arterial oxygen saturation (SaO2) can be determined. Such information is vital when caring for patients with critical illnesses or respiratory disease.

3. 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]

4. Oxygen saturation - Wikipedia

   en.wikipedia.org/wiki/Oxygen_saturation

   Dissolved oxygen levels required by various species in the Chesapeake Bay (US). In aquatic environments, oxygen saturation is a ratio of the concentration of "dissolved oxygen" (DO, O 2), to the maximum amount of oxygen that will dissolve in that water body, at the temperature and pressure which constitute stable equilibrium conditions.

5. Blood gas tension - Wikipedia

   en.wikipedia.org/wiki/Blood_gas_tension

   Arterial blood oxygen tension (normal) P a O 2 – Partial pressure of oxygen at sea level (160 mmHg in the atmosphere, 21% of standard atmospheric pressure of 760 mmHg) in arterial blood is between 75 mmHg and 100 mmHg. [4] [5] [6] Venous blood oxygen tension (normal) P v O 2 – Oxygen tension in venous blood at sea level is between 30 mmHg ...

6. Hyperoxia - Wikipedia

   en.wikipedia.org/wiki/Hyperoxia

   This approach is considered the gold standard for diagnosing hyperoxia, as it accurately assesses PaO2 levels. Normally, PaO2 ranges from 75 to 100 mmHg, with hyperoxia generally being recognized when PaO2 exceeds 100 mmHg. In addition to PaO2 measurement, non-invasive methods such as the Oxygen Reserve Index (ORI) and oxygen saturation (SpO2 ...

7. Oxygen saturation (medicine) - Wikipedia

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

   Normal arterial blood oxygen saturation levels in humans are 96–100 percent. [1] If the level is below 90 percent, it is considered low and called hypoxemia . [ 2 ] Arterial blood oxygen levels below 80 percent may compromise organ function, such as the brain and heart, and should be promptly addressed.

8. The best tech for adults over 65 we spotted at CES this year

   www.aol.com/lifestyle/ces-2025-aging-in-place...

   The scale part at the base of the mirror assesses health metrics and biomarkers including blood pressure, heart rate, body mass index, Vo2 Max (the amount of oxygen your body uses during exercise ...

9. Alveolar–arterial gradient - Wikipedia

   en.wikipedia.org/wiki/Alveolar–arterial_gradient

   2 indicates that the patient's current minute ventilation (whether high or normal) is not enough to allow adequate oxygen diffusion into the blood. Therefore, the A–a gradient essentially demonstrates a high respiratory effort (low arterial PaCO 2) relative to the achieved level of oxygenation (arterial PaO 2). A high A–a gradient could ...