A nurse is caring for a client who has a closed wound drainage system. Which of the following interventions should the nurse include in the plan of care?

A. Increased drainage may indicate bleeding or infection; the nurse should assess and report, not remove the drain. B. The nurse should monitor patency and drainage flow to ensure suction is functioning and prevent fluid accumulation in the wound bed. C. Tubing is not routinely changed; it is maintained as a closed sterile system to reduce infection risk. D. Irrigation is contraindicated in closed systems like a Jackson-Pratt (JP) or Hemovac, as it can break sterility and impair suction.