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 mLSerumSST (Gold) RefrigeratedFasting is preferred. Transport using cold packs.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumNo additive (Red) RefrigeratedFasting 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
Ambient12 hours
Refrigerated4 days
Frozen28 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 Years9.9 YearsNormal49 - 208ng/mL
 18 Years49 YearsNormal38 - 267ng/mL
       FreetextAge: 10 - 13.9 Years; 41 - 167 ng/mL 
       FreetextAge: 14 - 17.9 Years; 37 - 135 ng/mL 
       FreetextAge: > 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.