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