The nurse is tо аdminister оndаnsetrоn (Zofrаn) 8 mg IVP to a patient. The patient currently has an IVPB with piperacillin sodium/tazobactam sodium 3.375 mg mixed in NS infusing and has only one IV site. Based on this compatibility chart, it is safe to administer the ondansetron with the IVPB.