Lower gastrointestinal series 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 a hospital or clinic. The patient lies on the X-ray table and a preliminary X-ray is taken. The patient is then asked to lie on the
Colon (rhetoric) Colon (rhetoric) A colon (from Greek: , "pl." , "cola") is a rhetorical figure consisting of a clause which is grammatically, but not logically, complete. In Latin, it is called a "membrum" or "membrum orationis". Sentences consisting of two cola are called "dicola"; those with three are "tricola". The corresponding adjectives are "dicolic" and "tricolic"; "colic" is not used in this sense. In writing, these cola are often separated by colons. An isocolon is a sentence composed of cola of equal syllabic length. The Septuagint used this system in the poetic books such as the Psalms. When Jerome translated the