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Laboratory Tests & Clinical Procedures

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Question
Answer
liver function tests (LFTs)   Tests for the presence of enzymes and bilirubin in blood.  
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stool culture   Test for microorganisms present in feces.  
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stool guaiac test or Hemoccult test   Test to detect occult (hidden) blood in feces.  
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lower gastrointestinal series (barium enema)   X-ray images of the colon and rectum obtained after injection of barium into the rectum.  
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upper gastrointestinal series   X-ray images of the esophagus, stomach, and small intestine obtained after administering barium by mouth.  
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cholangiography   X-ray examination of the biliary system performed after injection of contrast into the bile ducts.  
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computed tomography (CT)   A series of x-ray images are taken in multiple views (especially cross section).  
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abdominal ultrasonography   Sound waves beamed into the abdomen produce an image of abdominal viscera.  
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endoscopic ultrasonography (EUS)   Use of an endoscope combined with ultrasound to examine the organs of the gastrointestinal tract.  
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magnetic resonance imaging (MRI)   Magnetic waves produce images of organs and tissues in all three planes of the body.  
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gastric bypass or bariatric surgery   Reducing the size of the stomach and diverting food to the jejunum (gastrojejunostomy).  
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gastrointestinal endoscopy   Visual examination of the gastrointestinal tract using an endoscope.  
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laparoscopy   Visual (endoscopic) examination of the abdomen with a laparascope inserted through small incisions in the abdomen.  
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liver biopsy   Removal of liver tissue for microscopic examination.  
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nasogastric intubation   Insertion of a tube through the nose into the stomach.  
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paracentesis (abdominocentesis)   Surgical puncture to remove fluid from the abdomen.  
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