Lack of oxygen in the blood causes a bluish discoloration in the skin or mucous membranes called cyanosis. Most cyanosis is seen as a result of congenital heart disease, pulmonary disease, or as a terminal event as in cardiopulmonary arrest.
Review Date: 8/16/2004 12:00:00 AM
Reviewed By: A.D.A.M. Medical Illustration Team
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