Home
HelpTest 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 |