What Does ABG Mean in Medical Terms?

ABG stands for arterial blood gas. Blood test from an artery measuring oxygen, carbon dioxide and acidity.

arterial blood gas

Blood test from an artery measuring oxygen, carbon dioxide and acidity.

Where you will see ABG

You will most often see ABG in respiratory and ventilation charts, laboratory orders and test results.

Example

A laboratory request or report might list “ABG” as shorthand for arterial blood gas.

Related abbreviations

Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.

Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.