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complement c4 serum

What is Complement C4?

Complement C4 is a protein that belongs to the complement system that works with the immune system. C4 is particularly important in eradicating certain infections. It is also measured to diagnose autoimmune disorders. 

Disorders that are Tested through C4 

  • Active systemic lupus erythematosus
  • Rheumatoid arthritis
  • Serum sickness
  • Certain glomerulonephritides 
  • Chronic active hepatitis

Why should you get tested?

Getting tested for C4 abnormalities provides ample information on serious health conditions associated therein and ensures accurate medical response. Early detection translates to early treatment and recovery from the disease. 

Where can you get tested?

You can browse patient service centers by state below or find a location by zip.

Can’t find the test for you? Give us a call at (888) 438-5227. Our friendly customer service representatives will help you find the right tests that you need and answer any questions you have.

Here at Personalabs you can order blood tests online from the convenience and privacy of your home with just a click of a button.

We guarantee your peace of mind as we do not share your test results with insurance companies or any outside parties. You are completely in control over who can review your test results.


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