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Somatostatin
Test Code34480
CPT Codes
84307
Preferred Specimen
1.8 mL plasma collected in an EDTA (lavender-top) tube
Minimum Volume
0.6 mL
Instructions
Draw in a pre-chilled lavender-top tube. Separate and freeze immediately. Do not thaw.
Transport Container
Plastic screw-cap vial
Transport Temperature
Frozen
Specimen Stability
Room temperature: 8 hours
Refrigerated: 8 hours
Frozen: 28 days
Refrigerated: 8 hours
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature • Received refrigerated • Lipemic • Gross hemolysis • Gross icteric
Methodology
Extraction • Immunoassay (IA)
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. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Tues; Report available: 8 days
Reference Range
≤30 pg/mL
Clinical Significance
Somatostatin is a neurohormone produced in the brain, hypothalamus and gastrointestinal tract. This test is used to diagnose somatostatin-producing tumors. Elevated levels are observed with somatostatinoma, medullary thyroid carcinoma and pheochromocytoma.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |