Arterial blood gas analysis

Last updated: September 1, 2023

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Arterial blood gas (ABG) analysis is a common test that measures oxygen, carbon dioxide, and bicarbonate blood levels. The test provides an assessment of gas exchange processes and acid-base balance. ABGs are usually obtained by puncturing the radial or femoral artery. An arterial line may be placed if frequent ABG sampling and continuous blood pressure monitoring are required.

See also “Arterial access.”

Arterial blood gas analysistoggle arrow icon

Mixed oxygen venous saturationtoggle arrow icon

Referencestoggle arrow icon

  1. Chan ED, Chan MM, Chan MM. Pulse oximetry: Understanding its basic principles facilitates appreciation of its limitations. Respir Med. 2013; 107: p.789-799.doi: 10.1016/j.rmed.2013.02.004 . | Open in Read by QxMD
  2. Jubran A. Pulse oximetry. Crit. Care. 2015; 19 (1): p.272.doi: 10.1186/s13054-015-0984-8 . | Open in Read by QxMD
  3. Mechem CC, Parsons PE, Finlay G. Pulse Oximetry in Adults. In: Post TW, ed. UpToDate. Waltham, MA: UpToDate. Last updated: April 6, 2016. Accessed: June 26, 2017.

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