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Complement C4, Serum (C4, Serum)

Tube Type = Gold and Red Top

Tube Type

Test ID LAB151
EPIC Order C4 COMPLEMENT
CPT Code(s) 86160
Group/Individual Test Individual
Laboratory Core Laboratory
Tube Station 30; STAT:888
Specimen Routine: 2 mL blood/gold SST tube/red plain tube also acceptable
Micro: 300 µL blood/serum separator bullet/red Top
Stability Unspun: Unspun: 2 hours
Spun/Separated,
Room Temp:		 8 hours
Spun/Separated,
Refrigerated:		 7 days
Spun/Separated,
Frozen:		 90 days
Availability Routine: 24 hrs
Turnaround Time 2 hours
Reference Range 12.0-36.0 mg/dL
Comments Reference Range effective 7/13/2021

Reviewed by J. Carr on January 13, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514