Also known as: C3, C4, Total Complement (also known as CH50 or CH100), Total Hemolytic Complement Activity Formal name: Complement Activity, and Complement Proteins, C1 – C9 Related tests:Antibody Tests, ESR, CRP, RF, ANA
Why get tested? To determine whether deficiencies or abnormalities in the proteins that are part of the complement system are contributing to increased infections or increased autoimmune activity; to monitor the activity of autoimmune diseases
When to get tested? When you have recurrent microbial (usually bacterial) infections, unexplained inflammation or edema, or symptoms related to an autoimmune disorder; to help monitor an acute or chronic condition that affects the complement system
Sample required? A blood sample drawn from a vein in your arm
This article was last reviewed on July 13, 2007.
This page was last modified on April 8, 2009.
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