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2. What Is a Normal Oxygen Level and How Can I Check Mine? - AOL

   www.aol.com/normal-oxygen-level-check-mine...

   Understanding normal oxygen levels. The average person takes about 20,000 breaths a day. Keeping normal oxygen levels is a finely-tuned science. ... orphaning their two young children. Today ...

3. 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.

4. Hypoxemia - Wikipedia

   en.wikipedia.org/wiki/Hypoxemia

   Key to understanding whether the lung is involved in a particular case of hypoxemia is the difference between the alveolar and the arterial oxygen levels; this A-a difference is often called the A-a gradient and is normally small. The arterial oxygen partial pressure is obtained directly from an arterial blood gas determination. The oxygen ...

5. Arterial blood gas test - Wikipedia

   en.wikipedia.org/wiki/Arterial_blood_gas_test

   An arterial blood gas (ABG) test, or arterial blood gas analysis (ABGA) measures the amounts of arterial gases, such as oxygen and carbon dioxide.An ABG test requires that a small volume of blood be drawn from the radial artery with a syringe and a thin needle, [1] but sometimes the femoral artery in the groin or another site is used.

6. 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]

7. What Is a Normal Oxygen Level and How Can I Check Mine? - AOL

   www.aol.com/lifestyle/normal-oxygen-level-check...

   One of those vital signs is blood oxygen level, and in the hospital, it’s measured with a pulse oximeter. Patients with Covid-19 can sometimes have relatively mild symptoms and seem to be ...

8. Hypoxia (medicine) - Wikipedia

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

   Exposure of a tissue to repeated short periods of hypoxia, between periods of normal oxygen levels, influences the tissue's later response to prolonged ischaemic exposure. Thus is known as ischaemic preconditioning, and it is known to occur in many tissues. [50]

9. 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 ...