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.

Makers of medical devices that quickly measure oxygen levels in the blood would have to gather extra data to show that their products work for patients of color, under a new federal proposal released ...

Oxygen has provided a breath of fresh air to the study of the Earth's evolution some 400-plus million years ago. A team of researchers, including a faculty member and postdoctoral fellow from ...