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(Flat Plate of the Abdomen; Kidneys, Ureter, Bladder; KUB)
by Editorial Staff and Contributors
An x-ray creates pictures of organs in the body. This type of x-ray takes a picture of organs in the abdomen.
Reasons for Test TOP
This test may be done if there is a problem in your abdomen. The area includes everything from just under your chest to your pelvic area. Some symptoms you have may include:
Possible Complications TOP
Complications are rare. If you are planning to have an x-ray, your doctor will review a list of possible complications.
An x-ray does use radiation. You and your doctor will weigh the harms and benefits of this test. An x-ray may not be advised if you are pregnant. Be sure to discuss these risks with your doctor before the test.
What to Expect TOP
Prior to Test
Usually no special preparation is needed.
You will remove your clothes and put on a hospital gown. You will also need to remove all metal items, like jewelry and watches.
Tell your doctor if you:
Description of Test
You will lie flat on your back under the x-ray machine. You will be asked to remain still while the x-ray is taken. Between x-rays, you may be asked to move into another position. You may also be asked to stand upright.
After Test TOP
You will be able to leave after the test is done.
How Long Will It Take? TOP
The x-ray will take about 10 minutes
Will It Hurt? TOP
The x-ray may help your doctor find the source of your problem. If the x-ray shows an abnormality, you may need more testing such as:
Call Your Doctor TOP
Call your doctor if you have any questions about the test, your condition, or your test results.
If you think you have an emergency, call for emergency medical services right away.
National Institute of Diabetes and Digestive and Kidney Disorders
Urology Care Foundation
Public Health Agency of Canada
The Kidney Foundation of Canada
Kidney, ureter, and bladder x-ray. John Hopkins Medical Center website. Available at:
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Accessed January 26, 2015.
Last reviewed March 2017 by EBSCO Medical Review Board James Cornell, MD
Last Updated: 2/5/2014