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IGF-2
Test Code92790
CPT Codes
82542
Preferred Specimen
0.5 mL serum
Patient Preparation
Overnight fasting is preferred
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.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen -20° C: 21 days
Frozen -70° C: 34 days
Refrigerated: 7 days
Frozen -20° C: 21 days
Frozen -70° C: 34 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Grossly lipemic • Plasma
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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Night Sets up 2 days a week.
Clinical Significance
IGF-2 measurements are useful in the diagnosis of growth disorders, as an adjunct to IGF-1.
