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Vasoactive Intestinal Polypeptide (VIP) [920X]Test Code
3 mL plasma collected in an EDTA (lavender-top) tube
Other Acceptable Specimens
EDTA/Aprotinin plasma collected in an EDTA (lavender-top) tube
Centrifuge immediately and freeze in plastic vial. Do not thaw.
Plastic screw-cap vial
Refrigerated (cold packs)
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Extraction • Immunoassay
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