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Last updated:
27 May 2025

Canterbury Waitaha health information is moving. Content is moving to the Health New Zealand website info.health.nz/canterbury This website will be unavailable from Wednesday 4 June 2025.

Arterial blood gas [ABG]

Arterial blood gas (ABG) A blood test taken from a catheter placed in an artery (arterial line). It gives information on the levels of oxygen and carbon dioxide in the blood, as well as other results on the patient’s status.

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Page last updated: 19 January 2023

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