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HelpTest Code C4CS Complement C4
Specimen Information
Obtain specimen using standard phlebotomy techniques.
No special patient preparation is necessary.
| Container | Specimen | Temperature | Collect Vol | Submit Vol | Min Vol | Stability |
| SST | Serum | Refrigerate | 4 mL | 1.0 mL | 0.6 mL | 7 Days |
Greentop tubes (Plasma) are not acceptable for testing.
Reject Due To:
- Moderate or Marked Hemolysis
- Specimen unlabeled or mislabeled
Instrumentation / Method
Binding Site Optilite / Immunoturbidometric
Reference Range
All Sexes:
≥18 years: 13 - 39 mg/dL
Test Schedule / Analytic Time / Test Priority
Monday - Friday / 3 Days / Not available STAT
CPT / LOINC
| Meditech | Medent | LOINC | CPT |
| C4CS | C4CS | 4498-2 | 86160 |