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.

Lindsay Modglin is a nurse and professional writer who regularly writes about complex medical topics, as well as travel and the great outdoors. She holds a professional certificate in scientific ...

Earth's lakes are experiencing an alarming drop in oxygen levels, new research shows. Similar trends have also been observed across rivers and seas. But some lakes are losing oxygen up to nine times ...

Patients continuously monitored after surgery experienced significantly less time with dangerously low oxygen levels compared ...

Reducing oxygen levels in critically ill children on mechanical ventilators in intensive care could save tens of young lives each year, finds a new study led by researchers at UCL and Great Ormond ...