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Barium ingestion
Barium ingestion


Stomach cancer, X-ray
Stomach cancer, X-ray


Stomach ulcer, X-ray
Stomach ulcer, X-ray


Volvulus - X-ray
Volvulus - X-ray


Small intestine
Small intestine


Definition:

An upper GI and small bowel series is a set of x-rays taken to examine the esophagus, stomach, and small intestine.

See also: Barium enema



Alternative Names:

GI series; Barium swallow x-ray; Upper GI series



How the test is performed:

An upper GI and small bowel series is done in a medical office or hospital radiology department.

You may be given an injection of a medication that will temporarily slow bowel movement, so structures can be more easily seen on the x-rays.

Before the x-rays are taken, you must drink 16 - 20 ounces of a millkshake-like drink that contains a substance called barium. An x-ray method called fluroscopy tracks how the barium moves through your esophagus, stomach, and small intestine. Pictures are taken with you in a variety of positions. You may be sitting or standing.

The test usually takes around 3 hours. However, in some cases, it may take up to 6 hours to complete.

A GI series may include this test or a barium enema.



How to prepare for the test:

You may be told to change your diet for 2 or 3 days before the test. Usually, you can not eat for period of time before the test.

Be sure to ask your health care provider if there are any medication restrictions. Generally, you can continue medications you take by mouth. Never make any changes in your medications without first talking to your health care provider.

You will be asked to remove all jewelry on your neck, chest, or abdomen before the test.



How the test will feel:

The x-ray may cause mild bloating but usually causes no discomfort. The barium milkshake feels chalky as you drink it.



Why the test is performed:

This test is done to determine if you have a structural or functional problem in the esophagus, stomach, or small intestine.



Normal Values:

The esophagus, stomach, and small intestine are normal in size, shape, and movement.

Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.



What abnormal results mean: Additional conditions under which the test may be performed:

What the risks are:

There is low radiation exposure, which carries a very small risk of cancer. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk is low compared with the benefits.

Pregnant women should usually not have this test. Children are more sensitive to the risks of x-rays.

Barium may cause constipation. Consult your health care provider if the barium has not passed through your system by 2 or 3 days after the exam.



Special considerations:

The upper GI series should be done after other x-ray procedures, because the barium that remains in the body may block details in other imaging tests.



References:

Caroline DF, Kendzierski RM. The stomach. In: Adam A, Dixon AK, eds. Grainger & Allison's Diagnostic Radiology. 5th ed. Philadelphia, Pa: Churchill Livingstone Elsevier; 2008: chap 31.

Pickhardt PJ. Diagnostic imaging procedures in gastroenterology. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 135.




Review Date: 11/2/2008
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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