| UL | ultrasonic; Underwriters Laboratories; undifferentiated lymphoma; upper limb; upper limit; upper lob... |
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| UGIS | Upper Gastro-Intestinal Series |
| AUGH | acute upper gastrointestinal hemorrhage |
| UGI | upper gastrointestinal [tract] |
| UGIH | upper gastrointestinal hemorrhage |
| lyotropic series | <chemistry> A listing of anions and cations in order of their effect on protein solubility (tendency to cause salting out). Essentially a competition between the protein and the ion for water molecules for hydration. (20 Mar 1998) |
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| amyloidosis: gastrointestinal manifestations | <radiology> Oesophagus, loss of peristalsis, megaesophagus, stomach, small and rigid (simulate linitis plastica), effaced rugal pattern, diminished/absent peristalsis, may be localised to antrum, amyloidoma: well defined submucosal mass, small bowel, diffuse form (more common), diffuse, uniform thickening of valvulae conniventes, broadened flat undulated mucosal folds (mucosal atrophy), jejunalization of ileum, impaired motility, small bowel dilatation, localised form: multiple small deposits; associated with pseudoobstruction, colon, psudopolyps (12 Dec 1998) |
| gastrointestinal | <anatomy> Pertaining to or communicating with the stomach and intestine, as a gastrointestinal fistula. (18 Nov 1997) |
| gastrointestinal agents | Drugs used for their effects on the gastrointestinal system, as to control gastric acidity, regulate gastrointestinal motility and water flow, and improve digestion. (12 Dec 1998) |
| gastrointestinal bleeding | <gastroenterology> This describes any bleeding that may occur along the course of the gastrointestinal tract. This includes bleeding from the oesophagus, stomach, duodenum, small intestine, large intestine, rectum or anus. (12 Jan 1998) |
| gastrointestinal contents | The residue of ingested substances in the gastrointestinal tract. Excludes natural secretions and feces. (12 Dec 1998) |
| gastrointestinal fistula | A fistulous tract connecting the stomach with the intestine. (05 Mar 2000) |
| gastrointestinal haemorrhage | Bleeding in the gastrointestinal tract. (12 Dec 1998) |
| gastrointestinal hormone | <endocrinology> A general term for any hormone which is secreted by some part of the digestive system for the purpose of aiding digestion. For example: gastrin. (09 Oct 1997) |
| gastrointestinal hormones | Hormones that originate in and regulate motor and secretory activity of the digestive organs. (12 Dec 1998) |
| gastrointestinal tract | <anatomy> The gastrointestinal tract starts from the oral cavity and proceeds to the oesophagus, stomach, duodenum, small intestine, large intestine, rectum and anus. (12 Jan 1998) |
| gastrointestinal transit | Passage of food (sometimes in the form of a test meal) through the gastrointestinal tract as measured in minutes or hours. The rate of passage through the intestine is an indicator of small bowel function. (12 Dec 1998) |
| receptors, gastrointestinal hormone | Cell surface proteins that bind gastrointestinal hormones with high affinity and trigger intracellular changes influencing the behaviour of cells. most gastrointestinal hormones also act as neurotransmitters so these receptors are also present in the central and peripheral nervous systems. (12 Dec 1998) |
| haematologic, gastrointestinal, and renal agents | A collective grouping for agents that act on the haematopoietic, gastrointestinal, and renal systems. (12 Dec 1998) |
| heterotrophic oral gastrointestinal cyst | A cyst of the oral cavity lined by gastric or intestinal mucosa from misplaced embryonic rests. (05 Mar 2000) |