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Labcorp Oklahoma, Inc.
Test Directory


Index:

C4 Complement

Order Name C4
Revision Date 11/11/2019
Test Name Methodology LOINC Code
C4 Complement
 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 3.0 mL (1.5 mL) Serum Serum Gel Tube Refrigerated
Alternate 1 3.0 mL (1.5 mL) Serum Red Top Refrigerated
Instructions Label specimen with Mobilab label or with patient name (first and last), date of birth, date and time of collection, collector initials, and test(s) being ordered.
Reference Range An interpretive report will be provided.
Methodology Immunoturbidimetric
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 3 Hours  
Stat TAT 45 Minutes 
Notes Specimen Stability:
 Ambient - 4 Hours
 Refrigerated - 8 Days
 Frozen - 8 Days
CPT Code(s) 86160
Lab Section NRLS-Core Chemistry