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Blood gases test

Blood gases test

The blood gases test is performed by collecting a sample of blood through a needle from an artery. The test is used to evaluate respiratory diseases and conditions that affect the lungs, and it is used to determine the effectiveness of oxygen therapy. The acid-base component of the test also gives information on how well the kidneys are functioning.




Review Date: 8/21/2016
Reviewed By: Denis Hadjiliadis, MD, MHS, Paul F. Harron, Jr., Associate Professor of Medicine, Pulmonary, Allergy, and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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