2 - 3 days
Test Updated:
CUIND
IBT Chronic Urticaria Index
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Test Overview
Ex-Vivo Challenge and cell culture.
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 ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
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.
