Autoimmune chronic urticaria Chronic urticaria IgE receptor Ab UC functional anti-FceR auto antibody
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.
Specimen
Patients taking calcineurin inhibitors should stop medication 72 hours prior to draw
Patients taking prednisone should be off their medication for 2 weeks prior to draw