Unnecessary tests represent a significant portion of health care’s expense. ICU care accounts for 13% of overall hospital costs. An arterial blood gas (ABG) test assesses the function of a patient’s ...

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 ...

Doctors carry out ABG tests in a hospital. A person cannot perform an ABG test at home. Pulse oximetry is an alternative, noninvasive method to measure blood oxygen saturation. People can test ...