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C4 Complement
Test CodeC4
Alias/See Also
C4
CPT Codes
86160
Preferred Specimen
Preferred: 0.8 ml of whole blood (0.4 mL of serum/plasma)
Minimum Volume
0.4 mL of whole blood (0.2 mL of serum/plasma)
Instructions
Fasting specimen is preferred. Separate from cellular material within 4 hours.
Transport Container
Serum Separator (gold top), Lithium Heparin (green or mint top)
Transport Temperature
Room Temperature
Specimen Stability
Room Temperatue: 1 day
Refrigerated: 3 days
Frozen: 4 weeks at -20 degrees C
Refrigerated: 3 days
Frozen: 4 weeks at -20 degrees C
Methodology
Blanked Endpoint
Setup Schedule
Daily
Report Available
Specimens received by noon will be reported by 4:30 p.m. Specimens received after noon will be reported by the next morning.
