On a routine urinalysis, a 30-year-old man was found to have hematuria. His urinalysis is negative for casts and protein, but is positive for moderate blood. His urine culture is negative. IV pyelogram and serum creatinine are both normal and you send urine cytology just to be safe It is also normal.
Which of the following is most appropriate in this case?
A . Renal ultrasound
B . Reassurance and periodic monitoring
C . Cystoscopy
Answer: B