Complement C4




Test Mnemonic

C4COMP

CPT Codes

  • 86160 - QTY (1)

LOINC ®

4498-2

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaLithium heparin PST (Lt. Green) Centrifuge and refrigerate.Submit in original tube or aliquot specimen into CCL aliquot tube

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) Centrifuge and refrigerate. 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.4 mL     

Stability

Environmental Condition Description
Ambient2 days
Refrigerated2 days
FrozenUnacceptable

Days Performed

Sun - Sat

Turnaround Time

8 hours

Methodology

Name Description
Turbidimetric Immunoassay (TUI) 

Reference Range

Complement C4
Sex Age From Age To Type Range Range Unit
       Normal13 - 46mg/dL

Clinical Info

Evaluation of autoimmune disease or complement deficiency.