Complement Total (CH 50), Serum

Useful For:
Total Complement (CH50) concentration is an overall measure of the complement system. Decreased concentrations are observed in patients with complement factor deficiencies and disease activity, e.g., systemic lupus erythematosus (SLE) and immune complex disease.

Methodology: Colorimetric

Specimen Requirements:
1 RED-TOP tube (minimum: 0.5mL of serum) . Centrifuge RED-TOP tube within 30 minutes after draw. Separate serum and FREEZE immediately. Send specimen frozen in plastic vial.

Alternative Specimen(s)
Serum Separator tubes

Avoid hemolysis.
With multiple tests, submit a separate specimen for each test.
Spinal, pericardial, pleural, and synovial fluids are NOT acceptable.

Analytical Time: 1 day

Days Set Up: Monday through Saturday

CPT Information:
86162 – Complement; T. hemolytic (CH50)