ABSTRACT
A 64-year-old woman was admitted to hospital with shortness of breath and a cough productive of dark green sputum. She was treated in the emergency department with intravenous fluid rehydration and a penicillin-based antibiotic. Five minutes after administration of the antibiotic she complained of feeling short of breath and dizzy. She sounded wheezy and looked very pale. An erythematous, macular rash is noted on her face and trunk.
