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.

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 ...

PARIS — Oxygen therapy is used too often in patients with respiratory difficulties, says one expert, and should only be given when oxygen saturation levels (SpO2) drop below 93%, as per the current ...