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Complement, Total (CH50) Timed (5 Samples) (Client 55032)
Test Code93313
CPT Codes
86160 (x4)
Preferred Specimen
1 mL serum [x5]
Minimum Volume
0.2 mL [x5]
Instructions
Draw sample without anticoagulant, allow to clot. 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. Avoid hemolysis.
Do not submit the sample in a glass tube.
All tubes must be clearly marked with time drawn. Submit all tubes with one test requisition.
With multiple tests, submit a separate tube for each test. Avoid hemolysis.
Do not submit the sample in a glass tube.
All tubes must be clearly marked with time drawn. Submit all tubes with one test requisition.
Transport Temperature
Frozen - Do not thaw
Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 30 days
Refrigerated: Unacceptable
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Lipemia • Received thawed
Methodology
Liposome
Setup Schedule
Night
Clinical Significance
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.
