Carboxyhemoglobin (COHb)


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Carboxyhemoglobin (COHb)


Carboxyhemoglobin (COHb) is the term used to describe hemoglobin (the protein in red blood cells that normally carries oxygen from the lungs to the rest of the body) that has bonded with carbon monoxide instead of oxygen.

Carbon monoxide's bond with hemoglobin is much stronger than oxygen's bond with hemoglobin. When hemoglobin binds with carbon monoxide instead of oxygen, the blood can no longer carry enough oxygen.

Credits


Author Maria G. Essig, MS, ELS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Pat Truman, MATC
Primary Medical Reviewer Caroline S. Rhoads, MD - Internal Medicine
Specialist Medical Reviewer R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care, Medical Toxicology
Last Updated March 18, 2008

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Last updated: March 18, 2008
Author: Maria G. Essig, MS, ELS
Reviewed By: Caroline S. Rhoads, MD - Internal Medicine, R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care, Medical Toxicology
Editors: Susan Van Houten, RN, BSN, MBA, Pat Truman, MATC

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