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Definition of Arterial blood gas
1. Noun. A blood test in which a syringe is used to draw a small blood sample from an artery. ¹
¹ Source: wiktionary.com
Medical Definition of Arterial blood gas
1. A test which analyses arterial blood for oxygen, carbon dioxide and bicarbonate content in addition to blood pH. Used to test the effectiveness of respiration. Acronym: ABG (17 Oct 1997)