A patient with Crohn's disease is undergoing a sigmoidoscopy. What is the function of this procedure?
A. imaging of the stomach, liver, and pancreas
B. evaluation of the colon and distal ileum
C. assessment of the small intestine
D. evaluation of the colon up to the splenic flexure
E. evaluation of the esophagus, stomach, and duodenum
Answer: D
Nutritional Science
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