Home
HelpTest Code C4 C4 Complement
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0mL
Minimum Volume: 0.5mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Serum |
|---|---|
| Ambient: | 2 days |
| Refrigerate: | 2 days |
| Frozen: | 3 months |
Reference Interval
| Age | Male (mg/dL) | Female (mg/dL) |
|---|---|---|
| 1 - 13 yrs | 14 - 44 | 13 - 46 |
| 14 - 79 yrs | 15 - 53 | 15 - 57 |
Days and Times Performed
24 hours, TAT 1 day
Methodology
Immunoturbidimetric
Service Code
31922
Update
Last updated 26/02/2022
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
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.