Skip to main content

Complement C3, C4, Serum

CPT/HCPCS 86160x2
Order Code CH224
Turnaround Time 72 hours
Test Includes

Complement C3, C4, Serum

Specimen Requirements
Specimen Source
Transport Container
(Specimen Container)

SST (Tiger Top)

Preferred Specimens
Collection Instructions
(Transport Temperature)
Separate serum or plasma from cells within 45 minutes of venipuncture. Transport at Room Temperature.
Specimen Stability
Temperature Period
Room temperature 48 hours
Refrigerated 8 days
Frozen 30 days
Test Details
Clinical Significance

Decreased C3 and C4 levels may be associated with acute glomerulonephritis, membranoproliferative glomerulonephritis, immune complex disease, active systemic lupus erythematosis, cryoglobulinemia, congenital C4 deficiency and generalized autoimmune disease.

Reference Ranges

See individual analytes