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Complement Total

Order Code CH50
Turnaround Time 72 hours
Test Includes

Complement Total

Specimen Requirements
Specimen Source
Transport Container
(Specimen Container)

SST (Tiger Top)

Preferred Specimens
Collection Instructions
(Transport Temperature)
Separate serum into a plastic tube and freeze sample within one hour of time drawn. With multiple tests, submit a separate tube for each test. Do not submit the sample in a glass tube. Transport Frozen.
Specimen Stability
Temperature Period
Room temperature Unacceptable
Refrigerated Unacceptable
Frozen 30 days
Test Details
Clinical Significance

CH50 is a screening test for total complement activity. Levels of complement may be depressed in genetic deficiency, liver disease, chronic glomerulonephritis, rheumatoid arthritis, hemolytic anemias, graft rejection, systemic lupus erythematosis, acute glomerulonephritis, subacute bacterial endocarditis and cryoglobulinemia. Elevated complement may be found in acute inflammatory conditions, leukemia, Hodgkin’s Disease, sarcoma, and Behcet’s Disease.

Reference Ranges

41.68-95.06 U/ml