Complement C4

Abbrev Code:C4   
Order Code:LAB151Order Name:Complement C4
Synonyms:Complement Component C4
CPT Codes: 86160 x1
Turnaround Time:Performed Mon-Fri; results are reported the same day.

Collection Instructions

Optimal Volume:1 mL
Minimum\Peds Volume:0.6 mL
Container:Red or gold (gel)
Alternate Containers: Red (no gel)
Causes for Rejection:Grossly hemolyzed and highly lipemic samples. Samples not separated from cells within 2 hours of collection.

Processing and Shipping

Specimen Processing:Allow specimen to clot 30-60 minutes at room temperature. Within 2 hours centrifuge and aliquot 0.5 mL, 0.2 mL minimum. Store refrigerated.
Shipping Instructions:Ship at refrigerated temperature.
Stability:After separation from cells: 3 days refrigerated; 3 months frozen.
Test Performed at or Referral Lab UM Specialty Core/Prot/Endo (Optilite C) 


Reference Range:
Age mg/dL
0-2 y 11-39
3-4 y 11-42
5-9 y 7-34
10-14 y 11-37
15-18 y 10-47
> 18 y 13-39

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