Intravenous Pyelogram (IVP)
Reviewed
An intravenous pyelogram (IVP) uses x-rays and contrast dye to take pictures of your urinary tract (kidneys, bladder, ureters). In males, it can also show the prostate. It is used to help find the cause of symptoms such as pain, blood in urine, or frequent urination, and to diagnose disorders like kidney stones, tumors, or enlarged prostate. IVP is not commonly used anymore; CT scans are usually preferred. But IVP may be useful in certain situations. Your provider can explain the pros and cons.
Preparation and collection
You will probably need to fast (not eat or drink) after midnight on the night before your test. You may also be asked to take a mild laxative the evening before the IVP. Your provider will give you specific instructions.
Understanding this test
Use the reference interval and units printed by the laboratory that performed the test. A result outside that interval is not a diagnosis by itself, and a result inside it does not rule out every condition. Your symptoms, history, medicines, timing, and related tests can change what the result means.
- There is a small chance you could have an allergic reaction to the contrast dye. Reactions can often be managed with medicine. Serious reactions are rare. Certain conditions such as other allergies, congestive heart failure, or diabetes may increase the risk.
- When the contrast dye is injected, you may feel itchy, warm, or queasy. Some people have a metallic taste in their mouth. These feelings are harmless and usually go away quickly.
- An IVP delivers a low dose of radiation. The dose is safe for most people, but it can be harmful to an unborn baby. Tell your provider if you are pregnant or think you may be pregnant.
What to do next
Your IVP images will be studied by a diagnostic radiologist, who will send a report with your IVP results to your healthcare provider. The report will explain exactly what the x-rays showed. Ask your provider to explain your report and diagnosis.
Evidence source
U.S. National Library of Medicine: Intravenous Pyelogram (IVP)