11th September 2020

A 30-year-old female presents to her GP with dysuria, urgency, suprapubic pain and fever

A 30-year-old female presents to her GP with dysuria, urgency, suprapubic pain and fever present for the last two days. She has a history of recurrent urinary tract infections. On further questioning regarding family history, she reveals that her mother has end-stage renal failure. On examination, she is hypertensive at 150/80, pyrexical at 38 degrees and has tenderness to abdominal palpation particularly over the suprapubic region. In addition to requesting urinalysis/gram stain and urine culture, you decide to request another investigation as you have a clinical suspicion of polycystic kidney disease. 

Select the SINGLE most appropriate first-line investigation from the list below. Select ONE option only.