Blood oxygen levels refer to the amount of oxygen circulating in the blood. Normal blood oxygen levels fall between 75 and 100 millimeters of mercury (mm Hg) on arterial blood gas (ABG) test results.

Mercey Livingston is a health and wellness writer and certified Integrative Nutrition Health Coach. She's written about fitness and wellness for Well+Good, Women's Health, Business Insider, and ...

Supplemental oxygen in patients with confirmed myocardial infarction has no clinical benefit irrespective of oxygen saturation levels at baseline, a new analysis of the Determination of the Role of ...

Vital signs, those fluorescent green numbers that beep, ding, and dash across black screens on the monitors in hospital rooms, have become a new source of angst during the coronavirus pandemic. One of ...

The Apple Watch Series 6 has a sensor built in that can measure the oxygen level in the blood. This ability could have a real benefit in judging health and reacting to the first signs of conditions ...