liver function tests (LFTs)
Tests for the presence of enzymes and bilirubin in serum.
Test for microorganisms present in feces.
stool guaiac or Hemoccult test
Detection of occult (hidden) blood in feces.
lower gastrointestinal series (barium enema)
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.
X-ray examination of the biliary system performed after injection of contrast into the bile ducts.
computed tomography (CT)
Imaging technique in which a series of x-ray films are obtained to visualize internal organs in multiple views including in cross section.
Sound waves beamed into the abdomen produce an image of abdominal viscera.
magnetic resonance imaging (MRI)
Magnetic and radio waves produce images of organs and tissues in all three planes of the body
Image of the liver after injecting radioactive material into the blood stream
Reducing the size of the stomach and diverting food to the jejunum (gastrojejunostomy)
Visual examination of the gastrointestinal tract using an endoscope
Visual (endoscopic) examination of the abdomen with a laparoscope inserted through small incisions in the abdomen
Removal of liver tissue followed by microscopic visualization
Insertion of a tube through the nose into the stomach
Surgical puncture to remove fluid from the abdomen
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