Flat plate
Key points
- X-rays are a form of electromagnetic radiation (like light).
- The test is performed in a hospital radiology department or in the health care provider's office by an X-ray technologist.
- Inform the health care provider if you are pregnant, have an IUD inserted, or have had a barium contrast media X-ray in the last 4 days.
- The abdominal X-ray can help identify suspected problems in the urinary system such as a kidney stone, or a blockage or perforation (hole) in the intestine.
Alternative names
Abdominal X-ray; X-ray - abdomen; Abdominal film; KUB
Definition
Abdominal films are X-ray images of the abdomen. X-rays are a form of electromagnetic radiation (like light). They are of higher energy, however, and can penetrate the body to form an image on film. Structures that are dense (such as bone) will appear white, air will be black, and other structures will be shades of gray.
How the test is performed
The test is performed in a hospital radiology department or in the health care provider's office by an X-ray technologist. You lie on your back on the X-ray table. The X-ray machine is positioned over your abdominal area. You hold your breath as the picture is taken so that the picture will not be blurry. You may be asked to change position to the side or to stand up for additional pictures.
How to prepare for the test
Inform the health care provider if you are pregnant, have an IUD inserted, or have had a barium contrast media X-ray in the last 4 days.
If you have taken any medications such as Pepto Bismol (which contains bismuth) within 4 days mention it to the health care provider, because they may interfere with the test.
You wear a hospital gown during the X-ray procedure. You must remove all jewelry. You must sign an informed consent form.
For infants and children:
The preparation you can provide for this procedure depends on your child's age and previous experiences. For specific information regarding how you can prepare your child, see the following topics:
- infant test or procedure preparation (birth to 1 year)
- toddler test or procedure preparation (1 to 3 years)
- preschooler test or procedure preparation (3 to 6 years)
- schoolage test or procedure preparation (6 to 12 years)
- adolescent test or procedure preparation (12 to 18 years)
How the test will feel
There is no discomfort. The films are taken with you lying on your back, side, and standing.
Why the test is performed
The abdominal X-ray can help identify suspected problems in the urinary system such as a kidney stone, or a blockage or perforation (hole) in the intestine. The X-ray can locate an object that has been swallowed. The X-ray may also help in diagnosing a pain in the abdomen or unexplained nausea.
Normal Values
Written and revised by
David Cohen, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.