37 year old patient admitted for exploratory colonoscopy. Surgical note Patient is a 37 year old male with no past medical history taken today for exploratory colonoscopy with possible surgical intervention. Prior to surgery patient reported lower abdominal pain 8 out of 10, no blood or mucus in stool. Blood cultures were taken and resulted negative. Colonoscopy performed and shows normal tissue surrounding in descending colon. Diverticular abscess in sigmoid colon noted. Incision and drainage performed and samples obtained for colonic tissue culture. Patient to be started on antibiotics for abscess, pending culture results. A nurse is caring for the patient post colonoscopy. The nurse reviews the medication administration record and notes a one time dose of cefazolin was given prior to the procedure. The healthcare provider then places a new order for ampicillin/sulbactam. Complete the following sentence by using the list of options. The nurse understands that the antibiotic given prior to surgery is considered ___ therapy. Meanwhile the new antibiotic is used as ___ therapy.