A nurse is assisting with care for an 11-year-old child who has appendicitis. For which of the following complications should the nurse anticipate assisting with collecting data for the RN assessment of the client?

A. Pyloric stenosis. Pyloric stenosis is a condition that affects infants, causing projectile vomiting due to the narrowing of the pyloric sphincter. It is not a complication of appendicitis and is unrelated to this child's condition. B. Celiac disease. Celiac disease is an autoimmune disorder triggered by gluten consumption, leading to malabsorption and gastrointestinal symptoms. It is a chronic condition and is not associated with appendicitis or its complications. C. Gastroenteritis. Gastroenteritis involves inflammation of the stomach and intestines, usually due to viral or bacterial infection. While it can cause abdominal pain, it is not a direct complication of appendicitis but rather a separate condition with similar symptoms. D. Peritonitis. Peritonitis is the most serious complication of appendicitis and occurs when the inflamed appendix ruptures, leading to infection of the peritoneal cavity. It presents with severe abdominal pain, fever, rigidity, and signs of systemic infection, requiring urgent medical intervention.