Days Set Up
Monday, Wednesday, Friday
Analytic Time

2 - 3 days

MiChart Code
CU Index
Soft Order Code
VCUI

Test Updated:

Synonyms

CUIND
IBT Chronic Urticaria Index

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

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MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Ex-Vivo Challenge and cell culture.

Test Usage

Patients with a chronic form of urticaria who are positive (>10) with the CU index have an autoimmune basis for their disease. A positive result does not indicate which autoantibody (anti-IgE, anti-FceRI or anti-FceRII) is present.

Reference Range
 

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

Specimen Requirements

Collection

Patients taking calcineurin inhibitors should stop their medication for 72 hours prior to draw. Patients taking prednisone should be off their medication for 2 weeks prior to draw. Collect specimen in an SST or red top tube. Centrifuge and aliquot serum into a plastic vial within 2 hours of collection. Store at room temperature up to 1 week or freeze for longer storage.

Yellow Top Tube
Normal Volume
3 mL serum
Minimum Volume
 

Billing Information

CPT Code
86352
Pro Fee Code
 
LOINC
 

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.