A 32-year-old woman comes to the physician for a 2-week history of left-sided flank pain and blood in the urine. She has no significant past medical history. Vitals are within normal limits. A CT of the abdomen shows multiple cysts within the left and right kidneys. Serum studies show mildly increased creatinine and urea nitrogen. Genetic screening confirms a mutation in the ADPKD1 gene on chromosome 16. Which of the following is the most appropriate next step in management?
Dimercaptosuccinic acid renal scan
Intravenous pyelogram
MRI angiogram of the circle of Willis
Retrograde cystourethrogram
Serial blood pressure checks
Voiding cystourethrogram
