Home
HelpTest Code CPEP C-Peptide
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0mL
Minimum Volume: 0.5mL serum
Collection Instructions: Fast patient 10 - 12 hours before sample collection.
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Serum |
|---|---|
| Ambient: | 24 hours |
| Refrigerate: | 48 hours |
| Frozen: | 3 months |
Reference Interval
| Age | |
|---|---|
| 0 - <1 yr | 70-1,448 pmol/L |
| 1 - 5 yrs | 116-1,477 pmol/L |
| 6 - 18 yrs | 257-2,241 pmol/L |
| ≥19 yrs | 260-1,729 pmol/L |
Days and Times Performed
24 hours, TAT 1 day
Methodology
Chemiluminescent Immunoassay
Service Code
31869
Update
Last updated 16/05/2024
Updated on Methodology.
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Evaluation of B-cell function in insulin dependent diabetes. Aids in differential diagnosis of hypoglycaemia (factitious hypoglycaemia, insulin autoimmune hypoglycaemia and insulinoma)