MSFinals-4842

A 63-year-old man is admitted to hospital with two days of loin pain, fever, nausea and rigors. He reports having had a recent urinary tract infection, with associated dysuria and haematuria. He has a past medical history of hypertension and diabetes.

Upon examination, he has right-sided flank pain with some tenderness. Observations show mild hypotension and a raised temperature. Blood tests support an infective picture. The medical team decides to start the patient on an antibiotic.

The following day, the patient experiences a seizure, witnessed by the nursing staff. The doctors suspect that the antibiotic may have triggered the seizure.

Which antibiotic was prescribed to the patient?