Complement Panel
Complement proteins and total hemolytic complement.
2 tests explainedAlso printed as Complement C3 and C4, Complement Studies, Complement Profile
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Nothing you type here leaves your browser. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.
The 2 tests in this panel
What each one measures and the range labs usually print for adults. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.
Complement C3
The most abundant complement protein in your blood. Complement is part of the immune system, and C3 sits at its center.
- 18+
- 90–180 mg/dL
Complement C4
A protein in the complement system, part of your immune defense. Low or high levels are read together with C3 and your symptoms.
- 18+
- 12–38 mg/dL
Labs can include one more test in this panel that we haven’t written up yet.