Review Question - QID 104017

A 75-year-old man 10 days post-sternotomy and coronary artery bypass graft begins to experience increasing chest pain from under his sternal wound. A nurse enters his room and finds a serous discharge coming out of his surgical incision site. She subsequently alerts a physician and takes his vital signs. She finds his temperature is elevated to 101.2F and pulse is 120 beats/min. A chest x-ray is ordered and the findings are seen in Figure A. What is the appropriate course of treatment for this patient?