Immediate Test Change
Test Update – Vasoactive Intestinal Polypeptide, Plasma (VIP)
Effective June 27, 2024.
Beginning June 27, 2024, Vasoactive Intestinal Polypeptide, Plasma (VIP) will be sent to a different reference laboratory due to issues with the current reagent manufacturer.
Refer to the table below for an outline of testing changes.
Please contact Client Services with any questions or for assistance.
Test Change Overview
Vasoactive Intestinal Polypeptide, Plasma (VIP)
Additional patient preparation information for the new test:
Patients must fast for 10-12 hours and avoid antacid medications or medications that affect intestinal motility for at least 48 hours before collection.
New Test
Old Test
Performing Laboratory
Mayo Clinic Laboratories
ARUP
Methodology
Enzyme-linked immunosorbent assay (ELISA)
Radioimmunoassay (RIA)
Specimen Collection
Plasma, 1 mL
Lavender K2EDTA tube
Plasma, 1 mL
PPACK tube
Minimum Volume
0.5 mL
0.5 mL
Transport Temperature
Critical frozen
Frozen
Reference Interval
0-36 pg/mL
0-60 pg/mL
Turnaround Time
6-10 days
4-8 days