- 1. An analysis of the dissolved gases in blood plasma, including oxygen, nitrogen, and carbon dioxide.2. Any of the gases that become dissolved in blood plasma.
* * *
Look at other dictionaries:
Arterial blood gas — An arterial blood gas (ABG) is a blood test that is performed specifically on blood from an artery. It involves puncturing an artery with a thin needle and syringe and drawing a small volume of blood. The most common puncture site is the radial… … Wikipedia