Antimicrobial Use Guidelines (AMUG) version 21 - UW Health

1.2.3.5.1. Prescriber should be contacted prior to initiatinggraded challenge1.2.3.5.2. Anaphylaxis treatment medications should beavailable1.2.4. The pharmacist should contact the prescriber if:1.2.4.1. The type of rash cannot be ascertained, in which case itshould be assumed to be urticarial (IgG mediated). 111.2.4.2. The patient’s history is positive for an IgE-mediated (type 1)reaction.1.2.4.3. The reaction is a severe, non-IgE-mediated reaction.