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

Choice A reason: Having two first-degree relatives with colorectal cancer significantly increases an individual's lifetime risk. Clinical guidelines recommend that these high-risk individuals begin screening at an earlier age (usually age 40 or 10 years younger than the earliest diagnosis) and undergo more frequent colonoscopies to detect and remove precancerous polyps before they become malignant.

Choice B reason: Preemptive surgery (such as a total colectomy) and chemotherapy are extreme measures and are generally not indicated for someone with a family history unless they have a confirmed genetic syndrome like FAP. Prophylactic chemotherapy is not a standard medical practice for cancer prevention in the absence of a current diagnosis or high-stage disease.

Choice C reason: This statement is medically inaccurate and dangerous. Colorectal cancer risk does not "skip generations" in a predictable way. Furthermore, while some forms of colon cancer are autosomal dominant (like Lynch syndrome), having first-degree relatives with the disease always necessitates increased vigilance and screening rather than a false sense of security.

Choice D reason: While diet is a modifiable risk factor, a "low-fat and low-fiber" diet is actually associated with an increased risk of colorectal cancer. High fiber is protective. Furthermore, for someone with a strong familial predisposition, lifestyle changes alone are insufficient; they must be coupled with rigorous clinical surveillance via colonoscopy.

Choice A reason: Hypoactive bowel sounds are typically associated with a paralytic ileus or the later stages of a bowel obstruction. In the acute inflammatory phase of Crohn's disease, the intestinal tract is hyperactive as it attempts to move contents past inflamed or narrowed segments, making dull or absent sounds an atypical initial finding.

Choice B reason: Crohn's disease most commonly affects the terminal ileum, located in the right lower quadrant. During an exacerbation, inflammation and partial obstruction of the intestinal lumen lead to borborygmi, which are high-pitched, rushing, or tinkling bowel sounds as the intestine forcefully contracts to push fluid and gas through the narrowed areas.

Choice C reason: A positive Murphy sign is a specific clinical indicator of acute cholecystitis, elicited by pain during inspiration while the gallbladder is palpated. Rebound tenderness is more indicative of peritonitis or appendicitis. While Crohn's can cause abdominal tenderness, these specific signs point toward different hepatobiliary or surgical emergencies.

Choice D reason: Abdominal pain and cramping in Crohn's disease are typically associated with eating (postprandial) rather than being specifically worse at night. Food intake triggers the gastrocolic reflex and peristalsis, which increases pressure against the inflamed intestinal walls, leading to the characteristic colicky pain experienced by these patients.