A nurse is reviewing the medical record of a client who has pneumonia and a severe penicillin allergy. Which of the following antibiotics should the nurse expect the provider to prescribe?

Levofloxacin is a fluoroquinolone antibiotic that is not related to penicillin or cephalosporins and is safe to use in clients with severe penicillin allergies. It is commonly used for community-acquired pneumonia. Amoxicillin is a penicillin — absolutely contraindicated. Cefdinir and cefixime are cephalosporins, which carry a risk of cross-reactivity with penicillin and should be avoided in clients with severe penicillin allergies.