Test Overview
Clinical Utility
Proinsulin is used to diagnose insulinomas and to monitor therapy in patients with insulinomas.
Method
Enzyme-linked immunosorbent assay (ELISA)
Result Included
Proinsulin
Specimen
Volume
Sample Volume
1.0 mL
Minimum Volume
0.5 mL
Patient Preparation
Overnight fasting required.
Collection & Handling
Collection Instructions
Collect a fasting sample.
Handling Information
Allow blood to fully clot and immediately separate and freeze serum. Store and send frozen.
Stability
| Ambient | Refrigerated | Frozen |
|---|---|---|
| 24 hours | 72 hours | 90 days |
Rejection Criteria
| Criteria | Specification |
|---|---|
| Hemolysis | Gross |
| Lipemia | Present |
| Icterus | Present |
Performance & Interpretation
Turnaround Time
11 days
Results
Name
Units
Reference Range
Conversion
-
Proinsulinpmol/L≤18.8
Referral Location
Out-of-Country
Test Version
Last Updated
2024-02-06