A charge nurse is concerned about a recent increase in facility-acquired catheter infections. Which of the following actions should the nurse take first?

A. Revising policies is important but should be based on data from an investigation. B. Meeting with providers is important but should be based on data from an investigation. C. The first step in quality improvement is to assess the underlying cause of the issue (e.g., poor hygiene, prolonged catheter use). D. Training is necessary but should be tailored based on identified problem areas.