PREVIOUS QUESTION:

 

NEXT QUESTION:

 

What does a lower GI test do, and how does it work?

ANSWER

Lower GI tests or barium enemas examine the large intestine and the rectum. For this test, barium or an iodine-containing liquid is introduced gradually into the colon through a tube inserted into the rectum. As the barium passes through the lower intestines, it fills the colon, letting the radiologist see growths, polyps, and narrowed areas. A fluoroscope machine is held over the part of the body being examined and transmits continuous images to a video monitor.

From: Imaging Tests for Digestive Diseases WebMD Medical Reference

SOURCES: 

Radiological Society of North America (RSNA). 

National Institute of Diabetes and Digestive and Kidney Diseases Clearinghouse (part of National Institutes of Health).

Johns Hopkins Medicine. 

 

Reviewed by Minesh Khatri on August 30, 2019

SOURCES: 

Radiological Society of North America (RSNA). 

National Institute of Diabetes and Digestive and Kidney Diseases Clearinghouse (part of National Institutes of Health).

Johns Hopkins Medicine. 

 

Reviewed by Minesh Khatri on August 30, 2019

NEXT QUESTION:

What can upper GI tests find?

WAS THIS ANSWER HELPFUL

THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

    This tool does not provide medical advice. See additional information.

    Other Answers On: