A 19-years-old female patient was admitted to the outpatient clinic. She gave a history of urinary tract infection (UTI) 4 months preceding admission for which she was treated with oral ampicillin without complications. Five days prior to this admission, she began to complain nausea without vomiting. One day later, she developed left flank pain, fever, and chills, and increased micturition frequency. She was admitted to a general hospital. She noted foul-smelling urine on the day before admission. She was presented with a temperature of 38.8^°C.