A 50-year-old male with a past medical history of hypertension presents to the emergency department with right upper quadrant abdominal pain, nausea, and fevers. He is noted to have an elevated white blood cell count and total bilirubin of 5 mg/dL. Further evaluation with an abdominal ultrasound shows a dilated common bile duct to 8 mm with a visualized obstructing gallstone within the lumen. All of the following are appropriate antibiotic choices EXCEPT:
A. Pipercillin-Tazobactam 3.375 g IV every 6 hours Wrong Choice!
B. Ertapenem 1 g IV once daily Wrong Choice!
C. Cefazolin 1 to 2 g IV every 8 hours and Metronidazole 500 mg IV every 8 hours Wrong Choice!
D. Ceftriaxone 2 g IV once daily Correct Choice
Answer:D
A 50-year-old male with a past medical history of hypertension presents to the emergency department with right upper quadrant abdominal pain, nausea, and fevers. He is noted to have an elevated white blood cell count and total bilirubin of 5 mg/dL. Further evaluation with an abdominal ultrasound shows a dilated common bile duct to 8 mm with a visualized obstructing gallstone within the lumen. All of the following are appropriate antibiotic choices EXCEPT:
A. Pipercillin-Tazobactam 3.375 g IV every 6 hours Wrong Choice! B. Ertapenem 1 g IV once daily Wrong Choice! C. Cefazolin 1 to 2 g IV every 8 hours and Metronidazole 500 mg IV every 8 hours Wrong Choice! D. Ceftriaxone 2 g IV once daily Correct Choice