Test Overview
Test Methodology

LC-MS/MS
Electrochemiluminescent Bridging Immunoassay

Test Usage

Assessing the unexpected loss of response to therapy with vedolizumab over time.
An aid to achieving desired serum levels of vedolizumab.

Reference Range *

Vedolizumab lower limit of quantitation=2.0 mcg/mL
Antibodies-To-Vedolizumab: <9.8 ng/mL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Vedolizumab Quantitation: Monday, Wednesday, Thursday
Vedolizumab Antibodies: Tuesday, Friday
Analytic Time

6 - 10 days

Soft Order Code
VEDOZ
Synonyms
  • Entyvio
Laboratory
Sendout
Reference Laboratory
Mayo VEDOZ
Section
Special Testing
Specimen Requirements
Collection

Collect specimen in a Red top or SST tube. Centrifuge and send serum aliquotted into a screw capped tube, refrigerated. Include dose and interval.

Normal Volume
1.5 mL serum
Minimum Volume
0.75 mL serum
Storage Temperature
Refrigerated preferred, frozen acceptable
Additional Information

Test sent to Mayo Clinic Laboratories.

Billing
CPT Code
80280, 82397
Fee Code
AA695, AA425