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GENERAL INFORMATION

 

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Mayo Medical Laboratories

Mayo Clinic Laboratories

Test Code LAB5780 C4 (Fourth Component of Complement)

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Immunoturbidimetric

Literature Reference:

Package insert: Complement C4C-2. Roche Corporation. 01/2025

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Mint green top

Specimen Volume: Full tube

 

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:
STAT: not available
Routine: results available 2-4 hours of receipt.

Test Classification and CPT Coding

86160

Reference Values

0 - 12 months: 5-30 mg/dL

12 months and older: 10-40 mg/dL

Literature References:

Colantonio DA, Kyriakopoulou L, Chan MK, et al. Closing the gaps in pediatric laboratory reference intervals: a CALIPER database of 40 biochemical markers in a healthy and multiethnic population of children. Clinical Chemistry 2012;58:854-868.

Package insert: Complement C4C-2. Roche Corporation. 01/2025.

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only
Analyte Stability:

See analyte stability chart.

Alternate Tube:  plain red top, full

Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Processed by automated line for delivery to the Cobas 8000. Completed specimens are stored refrigerated for 5 days.

LOINC Code Information

Name LOINC Code
Complement Component 4 4498-2