Somatostatin
Test Code
34480
84307
Clinical Significance
Somatostatin - 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.
Test Resources
None found for this test
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Test Details
Methodology
Extraction • Immunoassay (IA)
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.
Reference Range(s)
≤30 pg/mL
Preferred Specimen(s)
1.8 mL plasma collected in an EDTA (lavender-top) tube
Minimum Volume
0.6 mL
Collection Instructions
Draw in a pre-chilled lavender-top tube. Separate and freeze immediately. Do not thaw.
Transport Container
Transport tube
Transport Temperature
Frozen
Specimen Stability
- Room temperature: 8 hours
- Refrigerated: 8 hours
- Frozen: 28 days
Reject Criteria
Gross hemolysis • Grossly lipemic • Received room temperature • Received refrigerated • EDTA (royal blue-top) • Grossly icteric
Setup Schedule
1.8 mL plasma collected in an EDTA (lavender-top) tube
0.6 mL
Draw in a pre-chilled lavender-top tube. Separate and freeze immediately. Do not thaw.
Transport tube
Frozen
Room temperature: 8 hours
Refrigerated: 8 hours
Frozen: 28 days
Refrigerated: 8 hours
Frozen: 28 days
Gross hemolysis • Grossly lipemic • Received room temperature • Received refrigerated • EDTA (royal blue-top) • Grossly icteric