Complement C3

Complement C3


The Complement C3 blood test checks the level of Complement C3, a key protein involved in your body’s immune response. Abnormal levels may indicate immune system disorders, inflammation, or autoimmune conditions such as lupus or kidney-related diseases. This test helps doctors evaluate how well your immune system is functioning and supports diagnosis and monitoring of certain medical conditions. It is also useful in identifying ongoing infections or inflammatory processes.

Parameters Covered

Complement C3

What the Test Measures

This test measures the amount of Complement C3 protein in your blood, which is part of the immune system. It helps identify immune system activity, inflammation, autoimmune conditions, and certain kidney disorders.

Turnaround Time for Results


Leicester: Most results are available within 1–2 working days (some tests may take longer)
Outside Leicester: Results are typically available within 2–4 working days (some tests may take longer)
Certain parameters: Some specialised tests may take 2–3 weeks to process.

How Results Are Delivered

Your personalised report will be securely sent to your registered email address.