IGF-2
Test Summary
IGF-2 measurements are useful in the diagnosis of growth disorders, as an adjunct to IGF-1.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
0.5 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.3 mL
Instructions
Allow blood to clot (10-15 minutes) at room temperature. Separate serum from cells and refrigerate. If sample collected in glass collection tube, transfer to plastic container.
Patient Preparation
Overnight fasting is preferred.
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 7 days
- Frozen -20° C: 21 days
- Frozen -70° C: 34 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Grossly lipemic • Hemolysis • Plasma
Order Code
IGF2
EPIC (Premier) Code
LAB5696
Includes
N/A
CPT Code
- 82542
Billing Code
- 670090
CPT Statement
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675
33608 Ortega Highway
San Juan Capistrano CA, 92675
Department
Reference Testing
Reference Range
| <2 Years | Not established |
| 2-17 Years | 260-630 ng/mL |
| ≥18 Years | 267-616 ng/mL |
Setup Schedule / Expected Turnaround Time
Monday, Thursday; Report available: 4 - 7 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
0.5 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.3 mL
Instructions
Allow blood to clot (10-15 minutes) at room temperature. Separate serum from cells and refrigerate. If sample collected in glass collection tube, transfer to plastic container.
Patient Preparation
Overnight fasting is preferred.
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 7 days
- Refrigerated: 7 days
- Frozen -20° C: 21 days
- Frozen -70° C: 34 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Grossly lipemic • Hemolysis • Plasma
Result Information
Methodology
Chromatography/Mass Spectrometry
Testing Laboratory
N/A
Reference Range
| <2 Years | Not established |
| 2-17 Years | 260-630 ng/mL |
| ≥18 Years | 267-616 ng/mL |
Setup Schedule / Expected Turnaround Time
Monday, Thursday; Report available: 4 - 7 days