Final answer:
The nurse will use the term 'nursing-sensitive outcome' to describe the finding.
Step-by-step explanation:
The term that the nurse will use to describe the finding that patients at the agency have a lower incidence of falls than the national average after implementing a well-researched fall prevention protocol is nursing-sensitive outcome. A nursing-sensitive outcome refers to a measurable outcome that is directly related to nursing care and can be influenced by nursing interventions. In this case, the implementation of the fall prevention protocol by the nurses resulted in a positive outcome of lower incidence of falls among patients.