Hemoglobin
Hemoglobin is the most important component of red blood cells. It is composed of a protein called heme, which binds oxygen. In the lungs, oxygen is exchanged for carbon dioxide. Abnormalities of an individual's hemoglobin value can indicate defects in red blood cell balance. Both low and high values can indicate disease states.
Review Date: 04/13/2006
Reviewed By: A.D.A.M. Medical Illustration Team
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