IGF Binding Protein-1; Test not available - Review with provider for correct testing

Sunquest Code:IGF1BP  
Epic Code:LAB3564Epic Name:IGF Binding Protein 1
CPT Code:----------CPTCODES HERE----------
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 4-8 days.
Special Instructions:IGF-1 and/or IGFBP-3 are the recommended tests for assessment of growth hormone related disorders or growth hormone therapy. Ordering IGFBP-1 is not recommended for these patients.

This test was developed and its performance characteristics determined by Quest Diagnostics Nichols Institute, San Juan Capistrano. Performance characteristics refer to the analytical performance of this test.

Collection Instructions

Optimal Volume:2.0 mL
Minimum\Peds Volume:0.6 mL
Container:Red (no gel) (Purple (EDTA), Red or gold (gel))
Collection Instructions:Overnight fasting is preferred.
Causes for Rejection:Hemolyzed or lipemic specimens.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1 mL, 0.2 mL minimum. Freeze.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Lab Sendouts  (Quest)
Referral Lab number:36590


Reference Range:



5-34 ng/mL




5-9 y

15-95 ng/mL

10-14 y

8-64 ng/mL

15-18 y

5-40 ng/mL

References ranges have not been established by the reference laboratory for patients under 5 years of age.


Use:The concentration of IGFBP-1 is correlated with glycemic conditions. IGFBP-1 may be used for monitoring insulin responsiveness, as a marker for insulin-producing tumors, monitoring acute fluctuations in insulin action, and determining if poor glycemic control is due to inadequate insulin treatment or poor control of dietary intake.

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