IGF Binding Protein 2

IGF Binding Protein 2, IGFBP2, Insulin Like Growth Factor Binding Protein 2

Test Codes

Order Reference Lab Miscellaneous Send Out: EPIC: LAB848, Beaker: Ref. Lab Misc., Quest: 37102

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One plain Red-top tube.

Also acceptable: One Gold-top SST tube.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to plastic transport tube and maintain refrigerated at (2-8°C or 36-46) prior to transport.

Preparation for Courier Transport

Transport: 1.0 mL serum, refrigerated at (2-8°C or 36-46). (Minimum: 0.2 mL)

Rejection Criteria

• Grossly lipemic.
• Gross hemolysis.
• Received room temperature.
• Specimens not collected and processed as indicated.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to plastic transport tube and maintain refrigerated at (2-8°C or 36-46) prior to transport.

Transport: 1.0 mL serum, refrigerated at (2-8°C or 36-46). (Minimum: 0.2 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 12 hours
Refrigerated (2-8°C or 36-46°F): 4 days
Frozen (-20°C/-4°F or below): 28 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Quest Diagnostics, Wood Dale, IL.

Performed

Tuesday.
Results available in 4-11 days.

Reference Range

Adult

18-49 Years	38-267 ng/mL
>49 Years	47-350 ng/mL

Pediatric

5-9 Years	49-208 ng/mL
10-13 Years	41-167 ng/mL
14-17 Years	37-135 ng/mL

Test Methodology

Radioimmunoassay (RIA)

CPT Codes

83519

Contacts

Last Updated

3/17/2026