IGF Binding Protein-1


Sunquest Code:IGF1BP  
Epic Code:LAB3564Epic Name:IGF Binding Protein 1
Synonyms:IGFBP-1; IGF Binding Protein 1
Methodology:Radioimmunoassay
CPT Code:83519
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 4-8 days.
Special Instructions:Overnight fasting is required.
Compliance:

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

Specimen:Blood
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


Interpretive

Reference Range:

 

Adult

5-34 ng/mL

 

Pediatric

 

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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