Lower gastrointestinal series a familial history of polyps or colon cancer, although it is not uncommon for a barium enema to be done after a colonoscopy for further evaluation. Lower gastrointestinal series A lower gastrointestinal series is a medical procedure used to examine and diagnose problems with the human colon (large intestine). Radiographs (X-ray pictures) are taken while barium sulfate, a radiocontrast agent, fills the colon via an enema through the rectum. The term barium enema usually refers to a lower gastrointestinal series, although enteroclysis (an upper gastrointestinal series) is often called a small bowel barium enema. This test may be done in
Colon (punctuation) languages like Haskell use a double colon (::) to indicate type instead. A colon is also sometimes used to indicate a tensor contraction involving two indices, and a double colon (::) for a contraction over four indices. Additional colon-related symbols for math are encoding in Unicode: In computing, the colon character is represented by ASCII code 58, (HTML :) and Unicode . Several compatibility forms for Chinese and Japanese typography are also encoded: In Hebrew: In the Budu language of the Democratic Republic of the Congo: In Microsoft Windows filenames, the colon is reserved for use in alternate data streams.