Proinsulin
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Proinsulin, Serum
Test ID: PROIN
Test
Method
ELISA
Report Includes
Specimens
Serum
Clinical Utility
Proinsulin is used to diagnose insulinomas and to monitor therapy in patients with insulinomas.
Test Location
Quest Diagnostics, California USA
Test Version
6-Feb-2024
Specimen
Specimens
Serum
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 | 24 hours |
|---|---|
| Refrigerated | 72 hours |
| Frozen | 90 days |
Rejection Criteria
| Hemolysis | Gross |
|---|---|
| Lipemia | Present |
| Icterus | Present |
Test Version
6-Feb-2024
Performance / Interpretation
Method
ELISA
Turnaround Time
11 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Proinsulin | pmol/L |
|
||
Test Location
Quest Diagnostics, California USA
Test Version
6-Feb-2024
Interface / Setup
Test Version
6-Feb-2024