Is it possible to have a positive Phadiatop, without any positive follow-up Specific IgE tests?

Is it possible to have a positive Phadiatop, without any positive follow-up Specific IgE tests?

No, it should in fact not be possible if single positive results are reported according to Direction For Use, i.e. from 0.1 kUA /l; either you haven’t selected the right allergens to test (a positive Phadiatop is due to IgE antibodies to one or several of the common inhalant allergens in the patient’s enviroment) or it might be caused by technical problems or sample mix-up in the laboratory.

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As in all diagnostic testing, the diagnosis is made by the physican based on both test results and the patient history.