At a Glance
Why Get Tested?
To determine whether deficiencies or abnormalities in complement system proteins are contributing to increased infections or increased autoimmune activity; to help monitor the activity and treatment of autoimmune diseases and immune complex-related diseases
When to Get Tested?
When you have recurrent microbial (usually bacterial) infections, unexplained inflammation or edema, or symptoms related to an autoimmune disorder; periodically to help monitor a known acute or chronic condition that affects the complement system
A blood sample drawn from a vein in your arm
Test Preparation Needed?