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A 42-year-old female asked:

What does a test result for c3 low and c4 normal? c3 value is 11.69

1 doctor answer2 doctors weighed in
Dr. Gloria Lopez
Pediatrics 44 years experience
Autoimmune disease: The complement system is a group of proteins that move freely through your bloodstream. The proteins work with your immune system and play a role in the development of inflammation. C3 deficiency is characterized by recurrent bacterial infections, and different forms of kidney disease (glomerulonephritis). You can inherit a deficiency in your complement C3, but it's much more common to acquire it.

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Last updated Mar 13, 2015

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