Diagnostics·Diagnostics
CH50 complement
Informed by recognized medical guidance
Overview
The CH50 complement test is a blood test that checks how well your complement system is working. The complement system is a group of proteins in your blood that help your immune system fight infections and remove damaged cells. A low or high result can suggest certain health problems, such as autoimmune diseases or infections.
Key facts
- The complement system has more than 30 proteins that work together to defend your body.
- CH50 stands for 'total hemolytic complement' and measures the overall activity of the complement system.
- This test is often used to help diagnose or monitor autoimmune conditions like lupus.
The CH50 test is not a routine test for everyone. It is usually ordered when a doctor suspects a problem with the immune system, such as an autoimmune disease or a complement deficiency.
The test may be used for people of any age who have symptoms like repeated infections, swelling, or signs of an autoimmune disorder.