Abstract
Therapeutic agents in use for years may receive Food and Drug Administration approval for new indications, challenging infusion nurses to keep in mind differences in therapy for more than 1 disease state. For example, many infusion nurses are familiar with using rituximab in an oncology setting; however, because it has been approved relatively recently (February 2006) for treatment of rheumatoid arthritis (RA), infusion specialists must improve their understanding of how dosing and administration differ in the RA setting. This article focuses on the specific pathophysiology of the RA disease state and patient characteristics that may affect infusion therapy, illustrated by a case study.