| Laboratory: | Clinical Biochemistry |
| Test Name: |
INSULIN-LIKE GROWTH FACTOR BINDING PROTEIN 3 (IGFBP-3) - (S)
Test Code:
MISC
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| Clinical Information: |
IGF-1 measurement has superior diagnostic sensitivity and specificity compared with IGFBP-3. IGFBP-3 should, therefore, be combined with IGF-1 testing. The combination of IGF-1 & IGFBP-3 measurements is superior to determining either analyte alone in the diagnosis of growth hormone deficiency and resistance, and in the monitoring of recombinant hGH therapy. IGFBP-3 adds little, if anything to IGF-1 testing in the diagnosis and follow-up of acromegaly and gigantism.
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| Collection Devices: |
Preferred Device:
Send without delay to laboratory for processing.
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| Specimen Required: |
Serum: 1.0 mL
Pediatric Serum: 0.3 mL
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| Referral: |
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| Requisition: | |
| Reference Values: |
Age specific ranges on patient report.
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| Availability: |
Within 3 or 4 Days
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| See Also: | |
| More Information: |
Spin down promptly. Indicate patient’s age and sex. Store and send frozen to Mayo Medical Laboratories. Mayo Test ID: IGFB3 (83300)
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