Insulin Like Growth Factor Bind, Prot 2
Test Mnemonic
IGFBP2
CPT Codes
- 83519 - QTY (1)
Aliases
- IGF Binding Protein 2
- IGFBP-2
- Somatomedin-C Binding Protein-2
Performing Laboratory
Quest SJC
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | SST (Gold) | Refrigerated | Fasting is preferred. Transport using cold packs. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | No additive (Red) | Refrigerated | Fasting is preferred. Transport using cold packs. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.2 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 12 hours |
| Refrigerated | 4 days |
| Frozen | 28 days |
Days Performed
Tue
Turnaround Time
5 - 13 days
Methodology
| Name | Description |
|---|---|
| Radioimmunoassay (RIA) |
Reference Range
| Insulin Like Growth Factor Bind, Prot 2 | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| 5 Years | 9.9 Years | Normal | 49 - 208 | ng/mL | 18 Years | 49 Years | Normal | 38 - 267 | ng/mL | Age: 10 - 13.9 Years; 41 - 167 ng/mL | Age: 14 - 17.9 Years; 37 - 135 ng/mL | Age: > 49 Years; 47 - 350 ng/mL |
Special Info
Rejection criteria: Gross hemolysis, gross lipemia, specimens received at room temperature.
Clinical Info
The concentration of IGFBP-2 is inversely correlated with changes in growth hormone (GH) secretion. IGFBP-2 may also be used as a marker of metastatic prostatic carcinoma.