How you prepareBy 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.
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