"Your doctor will place a catheter into an artery in your groin and inject a dye to visualize the blood supply to the kidneys”
"Your doctor will insert a lighted tube in the bladder through your urethra, inspect the bladder, and instill dye to outline your bladder on x-ray"
"Your doctor will inject a radioactive solution into a vein in your arm, then the isotope in your kidneys and bladder will be visible on a scanner “
"Your doctor will insert a lighted tube into the bladder, and little catheters will be inserted through the tube into your kidneys."