Card 16 / 33: The following case presentation is for questions 15 and 16: A 55 year old woman with scleroderma has, in addition to complaints of dysphagia to solids and liquids, a one year history of non-bloody diarrhea. She has additional symptoms of abdominal gas and bloating. She has lost approximately 10 lbs. In evaluating her dysphagia an upper gastrointestinal series with barium is performed and the radiologist gives more barium to allow examination of the small intestine. The small intestinal portion of the test is remarkable for several small bowel diverticula. You suspect her diarrheal symptoms are due to small intestinal bacterial overgrowth syndrome.Which of the following tests will most accurately confirm your clinical suspicions?
A) Aspiration of gastric contents at the time of upper endoscopy
B) Aspiration of terminal ileal contents at the time of colonoscopy
C) Sudan stain on a stool specimen
D) Lactulose breath test
E) Fecal osmotic gap
F) Fecal chymotrypsin level

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