Synonyms
Complement C4, Fourth Component of Complement
Specimen Type
Serum or Plasma
Performing Lab
RCHSD Chemistry
Epic ID
LAB151
Lab Test Days
Daily
Standard TAT
4 Hours
Stat TAT
2 Hours
Collection Information
Specimen Required
1 mL Blood
Container Type
Light Green (Lithium Heparin PST)
Collection Instructions
Plasma collected in an EDTA (lavender-top) tube or serum collected in a (red-top) tube or serum separator tube (SST) is also acceptable.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK
Specimen Stability
Room Temp: 1 Day; Refrigerated: 7 Days; Frozen: 1 Month
Test Volume Required
0.2 mL Serum or Plasma
Minimum Test Volume
0.1 mL Serum or Plasma
Processing Instructions
Serparate serum or plasma within 2 hour of collection and give to Chemistry.
CPT Codes
86160
Revised
05-10-19
Initials
SL