How you prepare

By Mayo Clinic Staff

Before an intravenous pyelogram, tell your doctor if you:

  • Have any allergies, particularly to iodine or seafood
  • Have recently had an exam that included barium or X-ray dye
  • Are pregnant or think you might be pregnant
  • Have had a previous severe reaction to X-ray dyes

You may need to avoid eating and drinking for a certain amount of time before an intravenous pyelogram. Your doctor may also recommend that you take a laxative the evening before the exam.

May. 25, 2012