This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
What will be next investigation to be done in case of a 2 year old female child with episode of UTI ? 
Select and explain. 
A. Abdominal Ultrasound, B. DMSA Scan, C. 6 monthly urine culture, D. Nothing actively needed
A: Abdominal Ultrasound
Answer: A: Abdominal Ultrasound 
Explanation: Ans is 'a' ie Abdominal ultrasound Detailed Radiological investigations are performed in i) < 3 yrs. old with first UTI ii) those with symptoms of pyelonephritis iii) recurrent UTI iv) abnormal voiding or persistently distended bladder v) family h/o UTI or hypeension So, in this pt. of 2 yrs. an abdominal U/S will be done to delect any renal anomaly.