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HelpTest Code INS Insulin
Additional Codes
| Epic Ordering Code | LAB575 |
| NBS code | LBC13363 |
| Service code | 31711 |
Specimen Requirements
Submit the following:
| Container: |
| Yellow Top |
Processing Requirements
Allow specimen to clot for 30 mins and centrifuge within 2 hours
Specimen type: Serum
Volume: 0.5mL
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | Not available |
| Refrigerate | Not available |
| Frozen | 7 days |
Specimen Condition
| Gross Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
2.6 – 24.9 mU/L
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Differential diagnosis of hypoglycaemia (factitious hypoglycaemia, insulin autoimmune hypoglycaemia and insulinoma).
Update
Last updated 26/07/2026
LOINC Code Information
20448-7
Alias
Fasting Insulin
Immunoreactive Insulin
Insulin Assay
Native Insulin