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10076 Surgery

A 41-year-old woman is known to have multiple endocrine neoplasia syndrome. She has multiple family members who have had adenoma tumors removed from the parathyroid, pancreas, and/or pituitary glands. She has severe diarrhea associated with low gastric acid secretion and a normal gastrin level. Which of the following serum assays would be best to evaluate the possible cause of the diarrhea?

AGlucagon
BVasoactive intestinal peptide (VIP)
CCholecystokinin
DSerotonin
Surgery
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