Vasoactive Intestinal Polypeptide (VIP) [920X]

Test Code
VIP

CPT Codes
84586

Preferred Specimen
3 mL plasma collected in an EDTA (lavender-top) tube

Minimum Volume
1.1 mL

Other Acceptable Specimens
EDTA/Aprotinin plasma collected in an EDTA (lavender-top) tube

Instructions
Centrifuge immediately and freeze in plastic vial. Do not thaw.

Transport Container
Plastic screw-cap vial

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: 72 hours

Refrigerated: 7 days

Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Lipemia

Methodology
Extraction • Immunoassay

Reference Range
20-42 pg/mL

Clinical Significance
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.

Performed By
Quest Diagnostics Nichols Institute



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.