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IGF Binding Protein - 2

Clinical System Name




Sample Requirements

Specimen: Whole Blood

Container(s): Red or Gold SST or Gold Microtainer

Preferred Vol: 2.0 mL

Minimum Vol: 0.4 mL


Note: Fasting sample is preferred.               OverOOvov

 Overnight OO

Overnight fasting is required

Overnight fasting is required


Processing Instructions

Reject due to: Gross hemolysis or lipemia. Received at room temperature.

Spin: Y

Aliquot: Y

Temp: -20 C

Storage location: Spin sample and aliquot serum into plastic aliquot tube. Store sample in CPA freezer send-outs rack.


Off-site collection: Spin sample and aliquot serum into plastic aliquot tube. Transport refrigerated.


Specimen Type Temperature Time
Serum Room temp 12 h
  Refrigerated 4 d
  Frozen 28 d



STAT Performed TAT

Drawn daily; Set-up T at Quest.

5 - 8 d


Performing Laboratory

Quest Diagnostics - Nichols Institute

33608 Ortega Highway
San Juan Capistrano, CA 92690-6130


Phone Number: (800) 553-5445


Department:  Send Outs

Phone Number: (206) 987-2563


Reference Range


Adult Reference Ranges for IGF Binding Protein-2


18-49 Years

38-267 ng/mL

>49 Years

47-350 ng/mL

Pediatric Reference Ranges for IGF Binding Protein-2


5-9 Years

49-208 ng/mL

10-13 Years

41-167 ng/mL

14-17 Years

37-135 ng/mL



Method: Radioimmunoassay (RIA)

Analytical Volume: 0.2 mL serum


CPT Codes



Send Out Instructions


Reference Test Name: IGF Binding Protein-2 (IGFBP-2) (37102X)
Reference Test Number: 127233P
Instructions:  Send out M - F with the Quest courier.