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HelpTest Code C2 C2, Complement, Serum
Performing Laboratory
LabCorp of America
Methodology
Immunologic Quantitation by Radial Immunodiffusion(RID)
Reference Values
1.4 - 3.3 mg/dL
Results for this test are for research purposes only by the assay's manufacturer. The performance
characteristics of this product have not been established. Results should not be used as a diagnostic
procedure without confirmation of the diagnosis by another medically established diagnostic
product or procedure.
Test Classification and CPT Coding
86160
LOINC Code: 4484-2
Specimen Required
Container/Tubes: Red top
Specimen: 2 mL (min 0.1 mL) of serum
Transpoert Temperature: Frozen
Stability: 12 Days- Refrigerated or Frozen
Collection Note: Spin down, separate serum from cells, freeze immediately
Day(s) and Time(s) Performed
Tuesday, Thursday
Computer Interface Code
PDM # 5902250
Use For
Assess patients with hereditary deficiency of this component or acquired decrease in its level which may be seen due to hypercatabolism in hereditary angioneurotic edema, or consumption or loss as in vasculitides, glomerulonephritides, immune complex diseases. C2 deficiency is the most common complement deficiency (1 in 10,000) and is associated with SLE.