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HelpTest Code LAB21034 COMPLEMENT C4
Department
Send Outs
Reference Lab Test Number
C4
Collection Requirements
Centrifuge, separate serum from cells and send 1.0 mL serum refrigerated in a screw capped plastic vial.
Refer To
Warde Medical LaboratoryPrimary Collection Container
Serum separator tube (SST)
Alternate Collection Container
Plasma: Green sodium or lithium heparin, lavender EDTA
Serum: Red top
Transport
Refrigerated
Stability
Room temperature: Undetermined
Refrigerated: 8 days
Frozen: 3 months
Minimum Testing Volume
0.5 mL
Reference Range
10 – 40 mg/dL
Methodology
Nephelometry
Performed
Sunday-Thursday
Reported
2-4 days
CPT Codes
86160
Unacceptable Conditions
Grossly lipemic samples.