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HelpTest Code LAB151 Complement C4
AKA
C4
Specimen Type/Requirements
Gold top (Serum w/gel) tube - Serum
Red top (Serum w/out gel) tube - Serum
Light Green top (Lithium Heparin w/gel) tube - Plasma
Serum or plasma should be centrifuged and separated from cells within 2 hours of collection.
Test is not affected by hemolysis or lipemia.
Specimen Volume
| Preferred Volume | 1.0 mL |
|---|---|
| Minimum Volume | 0.4 mL |
Stability/Transport
| Room Temperature | 1 day | |
|---|---|---|
| Refrigerated | 3 days | Preferred for transport |
| Frozen | 7 days |
Performed Test Frequency
Monday through Sunday
Methodology
Turbidimetric (Antigen/Antibody Complex)
CPT
86160
Performing Lab
Sanford Laboratories Sioux Falls