Proinsulin, Intact
Test Mnemonic
PROINS
CPT Codes
- 84206 - QTY (1)
LOINC ®
10451-3
Aliases
- Proinsulin
Includes
- Proinsulin, Intact
Performing Laboratory
ARUP
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Frozen, Critical | Critical frozen. Patient MUST fast 12 - 15 hours prior to collection. Separate specimens must be submitted when multiple tests are ordered. Separate from cells ASAP or within 2 hours of collection, transfer into a standard aliquot tube and freeze. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | EDTA (Lavender) | Frozen, Critical | Critical frozen. Patient MUST fast 12 - 15 hours prior to collection. Separate specimens must be submitted when multiple tests are ordered. Separate from cells ASAP or within 2 hours of collection, transfer into a standard aliquot tube and freeze. | |
| 1 mL | Serum | No additive (Red) | Frozen, Critical | Critical frozen. Patient MUST fast 12 - 15 hours prior to collection. Separate specimens must be submitted when multiple tests are ordered. Separate from cells ASAP or within 2 hours of collection, transfer into a standard aliquot tube and freeze. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | After separation from cells: 2 months |
| Refrigerated | After separation from cells: 24 hours |
| Ambient | After separation from cells: Unacceptable |
Days Performed
Tue, Thu
Turnaround Time
2 - 7 days
Methodology
| Name | Description |
|---|---|
| Chemiluminescence Immunoassay (CLIA) |
Reference Range
| Proinsulin | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 17 Years | Normal | Not established | pmol/L | 18 Years | 99 Years | Normal | <= 7.2 | pmol/L |
Special Info
Critical frozen. Patient must fast 12-15 hours prior to collection. Separate specimens must be submitted when multiple tests are ordered. Grossly hemolyzed specimens will be rejected. This test is New York DOH approved.
Clinical Info
Aids in the detection of insulinoma. Do not use to diagnose diabetes mellitus.