Intravenous urography (IVU) is also known as intravenous pyleography (IVP). IVU provides your doctor with information about your urinary tract: kidneys, ureters, and bladder. Before the examination, you will receive an intravenous injection of a drug that contains iodine. The iodine later will be excreted through your kidneys. The iodine is a contrast medium that allows the radiologist to obtain images of your urinary tract. The X-ray images will be taken by a trained technologist and monitored by the radiologist. The radiologist also will interpret the films and then report the findings to your doctor.
You will be instructed to drink only clear liquids for 24 hours before your IVU. If you have kidney stones or if you will also be undergoing other procedures, such as a barium enema, you may be given a standard bowel preparation to cleanse your intestines. Any medications that you require can be taken with small sips of water.
If you are pregnant, may be pregnant, or are a nursing mother, tell the technologist before your IVU.
If you are on Glucophage for diabetes control, tell the technologist or radiologist immediately.
If you have allergies, asthma, heart disease, or other medical problems, notify the technologist and the radiologist before your IVU so that appropriate preparation may be made.
The incidence of complications or adverse effects, such as skin itching or hives, from this procedure is very low.