Vasoactive Intestinal Polypeptide (VIP), Plasma

Test Code
920


CPT Codes
84586

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


Patient Preparation
Fasting is preferred

Minimum Volume
0.75 mL


Instructions
Centrifuge and freeze immediately


Transport Container
Transport tube


Transport Temperature
Frozen


Specimen Stability
Room temperature: 4 hours
Refrigerated: 24 hours
Frozen: 6 months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lipemia • Grossly icteric


Methodology
Radioimmunoassay (RIA)

FDA Status
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.

Setup Schedule
Tues, thurs, sat


Reference Range
<78 pg/mL


Clinical Significance
Vasoactive Intestinal Polypeptide is used to diagnose watery diarrhea syndrome or to assess patients with suspected multiple endocrine neoplasia type 1 (MEN1).


Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042




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.