Reasons you may not be able to
have the test or why the results may not be helpful include:
Being unable to remain still during the
Having a large amount of stool (feces) or gas in the large
Having a recent test with barium (such as a
barium enema) or bismuth.
An intravenous pyelogram (IVP) is not usually done for a
pregnant woman because the X-rays could damage the growing baby. If a view of a
pregnant woman's kidneys is needed, an
ultrasound test may be done instead.
What To Think About
A preliminary X-ray picture (KUB) of your abdomen will be taken before the
intravenous pyelogram (IVP). This picture is reviewed by the radiologist before
the next part of the test begins. An IVP test may not be done if these pictures
show a problem.
For people who have known kidney problems,
diabetes, or who are dehydrated, steps may be taken to prevent kidney damage.
Less contrast material may be used and additional fluids may be given before,
during, and after the test.
If you have had kidney problems in the
past, blood tests for creatinine and blood urea nitrogen may be done before the
test to make sure that your kidneys are working properly. For more information,
see the topics
Blood Urea Nitrogen.
Another test that may
be done to look at the urinary tract is retrograde ureteropyelogram. Retrograde
ureteropyelogram is done when IVP results do not help identify a problem or
when IVP can't be done because of poor kidney function or an allergy to the
iodine contrast material.
Other Works Consulted
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis:
Fischbach FT, Dunning MB III, eds. (2009).
Manual of Laboratory and Diagnostic Tests, 8th ed.
Philadelphia: Lippincott Williams and Wilkins.
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.