The nurse is caring for a hospitalized client with Crohn's Disease with a suspected fistula. Which assessment would the nurse report to the health care provider (HCP) immediately?

Crohn’s disease is a chronic inflammatory bowel disease that can affect any part of the gastrointestinal tract and is associated with complications such as fistula formation, abscesses, strictures, and bowel obstruction. When complications become severe, they may progress to acute surgical emergencies such as perforation or peritonitis. Prompt recognition of signs indicating peritoneal involvement is critical because delays in treatment can be life-threatening. Nursing assessment focuses on identifying findings that suggest acute abdominal deterioration. A. A rigid abdomen is a classic sign of peritoneal irritation, which may indicate bowel perforation or peritonitis in a patient with Crohn’s disease. This finding is an emergency because it suggests widespread inflammation or leakage of intestinal contents into the peritoneal cavity. Immediate reporting is required as the patient may need urgent surgical intervention. B. Flatulence is a common gastrointestinal symptom and is not indicative of an acute complication requiring emergency intervention. In patients with Crohn’s disease, gas and bloating may occur due to inflammation or altered bowel motility. While uncomfortable, it does not suggest immediate deterioration. C. Nausea is a nonspecific symptom that may occur with many gastrointestinal conditions, including flare-ups of Crohn’s disease or medication effects. It does not independently indicate a life-threatening complication. In the absence of other severe findings, nausea is managed symptomatically and monitored for progression. D. Bloody diarrhea is a common manifestation of inflammatory bowel disease and may occur during disease exacerbations. While it should be monitored closely in Crohn’s disease, it is not as immediately critical as signs of peritoneal irritation such as a rigid abdomen. Persistent or worsening bleeding should be reported, but it does not indicate an acute surgical abdomen on its own.