Intravenous Pyelography

This is a test in which a dye is injected into the blood. This dye is taken up by the kidneys and shows up on an x-ray. Then the dye usually passes from the kidneys down the tubes that pass it down to the bladder. It will show any abnormalities in the kidneys, ureters, or bladder. It also shows if there is a delay in the process which would mean one kidney is malfunctioning. It may have a possible blockage somewhere in the urinary system.


You may be asked to fast up to 8 hours before the test or drink only clear liquids on the test day.


  • Normal size, shape, and position of the kidneys, renal pelvis, ureters, and bladder.

  • Normal kidney function shown by the length of time for passage of contrast material through the kidneys.

Ranges for normal findings may vary among different laboratories and hospitals. You should always check with your doctor after having lab work or other tests done to discuss the meaning of your test results and whether your values are considered within normal limits.


Your caregiver will go over the test results with you and discuss the importance and meaning of your results, as well as treatment options and the need for additional tests if necessary.


It is your responsibility to obtain your test results. Ask the lab or department performing the test when and how you will get your results.