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Complement, Total (CH50)
Test Code001941
Alias/See Also
CH50; Total Hemolytic Complement
CPT Codes
82003
Preferred Specimen
Serum, FROZEN
Minimum Volume
0.5 mL
Instructions
Allow specimen to clot at room temperature for 15 to 30 minutes. Remove serum after centrifugation, and place in plastic transport tube. Keep specimen refrigerated for no more than three days prior to transporting frozen to the laboratory for testing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED.
Transport Container
Red-top tube or gel-barrier tube
Transport Temperature
Transport frozen.
Specimen Stability
Room temp: 1 day; Refrigerated: 3 days; Frozen: 14 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimen not transported frozen; gross lipemia; plasma specimen (Ascorbic acid, bilirubin, and hemoglobin do NOT have a significant effect on the measurement.)
Methodology
Quantitative liposome lysis by spectrophotometry
Setup Schedule
Sunday - Friday 1st and 3rd shift
