The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 28-year-old man comes to the physician because of diarrhea and crampy abdominal pain for 5 weeks. He has had up to 4 bowel movements per day. Several times he noticed mucoid strings with the stool. He has abdominal bloating. Over the past month, has had a 3.2-kg (7-lb) weight loss. He has not had fever, cough, or bloody stools. He had a painful rash on his lower extremity 3 weeks ago that resolved spontaneously. He works as a pharmacy technician. His temperature is 37.3°C (98.8°F), pulse is 85/min, and blood pressure is 115/77 mm Hg. The abdomen is soft and nontender. His hemoglobin concentration is 11.9 g/dL, MCV is 79 fL, ferritin is 106 ng/dL, and platelet count is 410,000/mm3; serum concentrations of glucose, creatinine, and electrolytes are within the reference range. This patient's condition is most likely associated with which of the following findings?   (A) Increased serum VIP   (B) Stool leukocytes   (C) Melanosis coli   (D) Normal intestinal mucosa
['(B) Stool leukocytes <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Increased serum VIP \n (B) Stool leukocytes \n (C) Melanosis coli \n (D) Normal intestinal mucosa <> possible answers', "  A 28-year-old man comes to the physician because of diarrhea and crampy abdominal pain for 5 weeks. He has had up to 4 bowel movements per day. Several times he noticed mucoid strings with the stool. He has abdominal bloating. Over the past month, has had a 3.2-kg (7-lb) weight loss. He has not had fever, cough, or bloody stools. He had a painful rash on his lower extremity 3 weeks ago that resolved spontaneously. He works as a pharmacy technician. His temperature is 37.3°C (98.8°F), pulse is 85/min, and blood pressure is 115/77 mm Hg. The abdomen is soft and nontender. His hemoglobin concentration is 11.9 g/dL, MCV is 79 fL, ferritin is 106 ng/dL, and platelet count is 410,000/mm3; serum concentrations of glucose, creatinine, and electrolytes are within the reference range. This patient's condition is most likely associated with which of the following findings? <> context@"]