Complement Level – C3
C3 is known as an acute phase reactant. A decreased levels of C3 is found among patients with DIC, SLE and Endocarditis. The risk of recurrent bacteremia is also increased in the congenital deficiency. This evaluation is useful for diagnosing C3 deficiency and to investigate patient with an undetectable total complement level (CH50).
How to prepare for the test?
Overnight fasting is compulsory.