At a Glance
Why Get Tested?
To determine whether complement system proteins are contributing to increased infections or autoimmune disease. To monitor the activity of certain autoimmune diseases. To help diagnose hereditary angioedema.
When to Get Tested?
When you have recurrent (usually bacterial) infections, unexplained episodes of swelling, or symptoms related to certain autoimmune disorders. Periodically to help monitor a known long term disease such as systemic lupus, that affects the complement system.
A blood sample taken from a vein in your arm
Test Preparation Needed?