| Term | Definition |
|
liver function tests |
Tests for the presence of enzymes and bilirubin in serum. |
|
stool culture |
test for microorganisms present in feces |
|
stool guaiac |
detection of occult (hidden) blood in feces |
|
Hemoccult test |
detection of occult (hidden) blood in feces |
|
lower gastrointestinal series |
x-ray images of the colon and rectum obtained after injection of barium into the rectum |
|
upper gastrointestinal series |
x-ray images of the esophagus, stomach, and small intestine obtained after administering barium by mouth |
|
cholangiography |
x-ray examination of the biliary system performed after injection of contrast into the bile ducts |
|
computed tomography |
imaging technique in which a series of x-ray films are obtained to visualize internal organs in multiple views including in cross section |
|
abdominal ultrasonography |
sound waves beamed into the abdomen produce an image of abdominal viscera |
|
magnetic resonance imaging |
magnetic and radio waves produce images of organs and tissues in all three planes of the body |
|
liver scan |
image of the liver after injecting radioactive material into the blood stream |
|
gastric bypass |
reducing the size of the stomach and diverting food to the jujunum (gastrojejunostomy) |
|
gastrointestinal endoscopy |
visual examination of the gastrointestinal tract using an endoscope |
|
laparoscopy |
visual (endoscopic) examination of the abdomen with a laparoscope inserted through small incisions in the abdomen |
|
liver biopsy |
removal of liver tissue followed by microscopic visualization |
|
nasogastric intubation |
insertion of a tube through the nose into the stomach |
|
paracentesis |
surgical puncture to remove fluid from the abdomen |