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HelpTest Code C3 C3 complement
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | Not available |
| Refrigerate | 3 days |
| Frozen | 8 days |
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Gross Lipaemia | Alert/Reject |
| Others | Not applicable |
Methodology
Immunoturbidimetry
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
| Age | Male (mg/dL) | Female (mg/dL) |
|---|---|---|
| 1 – 13 yrs | 80 – 170 | 82 – 173 |
| 14 – 79 yrs | 82 – 185 | 83 – 193 |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Acute phase protein.
Useful in screening for classic and activation of alternative complement pathway.
Aids in the determination of inherited or acquired deficiencies as well as the diagnosis of inflammatory and necrotic disorders.
Service Code
31921
Update
Last updated 10/03/2025
Laboratory Code
LAB152
LOINC Code Information
4485-9
Alias
C3 COMP
Complement C3