Intravenous Pyelogram (IVP)
An intravenous pyelogram (IVP)
X-ray test that provides pictures of the kidneys, the
ureters, and the
urethra (urinary tract ). An IVP
can show the size, shape, and position of the urinary tract, and it can
evaluate the collecting system inside the kidneys.
During IVP, a
contrast material is injected into a vein in your arm.
A series of X-ray pictures is then taken at timed intervals.
is commonly done to identify diseases of the urinary tract, such as kidney
stones, tumors, or infection. See a picture of an
IVP showing a kidney stone . It is also used to look for problems with the
structure of the urinary tract that were present from birth (congenital).
ultrasound or a
computed tomography (CT) scan may be combined with an
IVP if more details about the urinary tract are needed. A computed tomography
intravenous pyelogram (CT/IVP) is usually done to look for the cause of blood
in the urine.
Why It Is Done
An intravenous pyelogram (IVP) is done to:
- Look for problems with the structure of the
- Find the cause of blood in the
- Find the cause of ongoing
back or flank pain.
- Locate and measure a
tumor of the urinary tract.
- Locate and measure a
- Find the cause of recurring
urinary tract infections.
- Look for damage
to the urinary tract after an injury.
How To Prepare
Before having an intravenous pyelogram
(IVP), tell your doctor if:
- You are or might be pregnant.
intrauterine device (IUD) in place.
are allergic to the iodine dye used as the contrast material for X-ray tests or
to anything else that contains iodine.
- You have ever had a serious
allergic reaction (anaphylaxis), such as after being
stung by a bee or from eating shellfish.
- Within the past 4 days,
you have had an X-ray test using barium contrast material (such as a
barium enema) or have taken a medicine (such as
Pepto-Bismol) that contains bismuth.
- You have had kidney problems
in the past or have
diabetes, especially if you take metformin
(Glucophage) to control your diabetes. The contrast material used during an IVP
can cause kidney damage in people who have poor kidney function. If you have
had kidney problems in the past, blood tests (creatinine, blood urea nitrogen)
may be done before the test to make sure that your kidneys are working
Talk to your doctor about any concerns you have regarding
the need for the test, its risks, how it will be done, or what the results will
mean. To help you understand the importance of this test, fill out the
medical test information form(What is a PDF document?).