Timing of Allergy Skin Testing Following Food-Induced Anaphylaxis

Abstract

Allergy skin prick testing(SPT) is a common tool for evaluation of food allergy(FA). Some clinicians delay testing following anaphylaxis due to concern for a refractory period and a possible false negative(FN) result, but this has not been prospectively studied in food-induced anaphylaxis. We sought to determine whether there is a significant difference in SPT when tested within 2 weeks, vs delaying until 4-8 weeks following food-induced anaphylaxis.