Which therapeutic measure is most appropriate for managing a patient presenting with constipation following colon cancer surgery?

Choice A reason: Bed rest and limiting fluid intake are both factors that contribute to, rather than resolve, constipation. Immobility slows intestinal peristalsis, and inadequate hydration leads to hard, dry stools that are difficult to pass. Postoperative care should emphasize early ambulation and increased fluid intake to promote bowel regularity. Choice B reason: Stool softeners, such as docusate sodium, are a standard postoperative intervention. They work by lowering the surface tension of the stool, allowing water and lipids to penetrate the fecal mass. This results in softer stools that require less straining, which is essential for protecting surgical anastomoses and abdominal incisions. Choice C reason: A low-fiber diet is typically used during the immediate "bowel rest" phase or for acute diarrhea. For constipation, a low-fiber diet would be counterproductive as it lacks the bulk necessary to stimulate the colon. Once the patient is cleared for oral intake, fiber is gradually reintroduced to maintain regular bowel function. Choice D reason: While protein is necessary for wound healing, increasing protein intake does not directly address constipation. In fact, high-protein diets that are low in fiber can sometimes worsen constipation. The focus for managing bowel movements should be on fiber, fluids, and appropriate pharmacological aids rather than macronutrient adjustments alone.