The Complement C3 test measures the level of complement component 3, a protein that plays a key role in the immune system’s inflammatory and defense responses. C3 is part of the complement system, which helps the body fight infections and clear immune complexes.
This test is commonly used to evaluate immune system activity and monitor autoimmune or inflammatory conditions such as lupus or certain kidney diseases. Abnormal C3 levels may reflect active inflammation, immune system dysfunction, or complement consumption. It is often ordered alongside Complement C4 for a more complete assessment.
Complement C3
The Complement C3 test measures the level of complement component 3, a protein that plays a key role in the immune system’s inflammatory and defense responses. C3 is part of the complement system, which helps the body fight infections and clear immune complexes.
This test is commonly used to evaluate immune system activity and monitor autoimmune or inflammatory conditions such as lupus or certain kidney diseases. Abnormal C3 levels may reflect active inflammation, immune system dysfunction, or complement consumption. It is often ordered alongside Complement C4 for a more complete assessment.
