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VIP (Vasoactive Intestinal Polypeptide) [920X]Test Code
3 mL plasma
Other Acceptable Specimens
EDTA/Aprotonin (pink-top) tube
Plastic, screw-cap vial
Refrigerated (cold packs)
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Lipemia • Received room temperature • PPT-potassium EDTA (white-top) tube
Extraction • Immunoassay
This test was developed and its performance characteristics have been determined by Quest Diagnostics. Performance characteristics refer to the analytical performance of the test.
VIP is a neurotransmitter and its excess can cause secretory diarrhea. VIP-secreting tumors are most commonly found in the tail of the pancreas in adults. VIP-producing ganglioneuromas or ganglioneuroblastomas may be found in the adrenal glands in children.
Quest Diagnostics Nichols Institute