C3

Alternative names
Complement component 3

Definition
This is a blood test that measures one component of the complement cascade. Complement is a group of blood proteins that cause immune responses and
inflammation. The complement cascade is a series of reactions that take place in the blood. There are 9 major complement components, labeled C1 through C9. This test measures C3.

see Complement component 3.

Johns Hopkins patient information

Last revised: December 4, 2012
by Amalia K. Gagarina, M.S., R.D.

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