A patient being admitted with an acute exacerbation of ulcerative colitis. The nurse will plan to:

Choice A reason: Cobalamin supplementation is primarily indicated for patients with Crohn's disease involving the terminal ileum or those who have undergone significant ileal resection. Ulcerative colitis affects the colon and rectum, not the ileum where B12 absorption occurs, making this intervention inappropriate for an acute UC exacerbation. Choice B reason: Metoclopramide is a prokinetic agent used to treat gastroparesis and nausea by increasing upper gastrointestinal motility. In acute ulcerative colitis, increasing motility is contraindicated as it can worsen abdominal cramping, diarrhea, and potentially precipitate toxic megacolon, which is a life-threatening complication of severe colonic inflammation. Choice C reason: Management of acute ulcerative colitis exacerbations requires bowel rest to reduce mucosal irritation and gastrointestinal secretions. Transitioning the patient to NPO (nothing by mouth) status helps decrease peristalsis, minimize abdominal pain, and reduce the frequency of bloody stools, allowing the inflamed colonic mucosa time to heal. Choice D reason: While a total proctocolectomy is a curative surgical option for ulcerative colitis, it is not the immediate priority during an acute admission for an exacerbation. Medical stabilization using corticosteroids and bowel rest is the first-line approach; surgical education is reserved for when the acute phase resolves.