Juvenile arthritis should be suspected in a child who exhibits

The assessment finding that the nurse should expect in an infant with Hirschsprung disease is option A, constipation with the passage of foul-smelling, ribbon-like stools. Hirschsprung disease is a congenital condition characterized by the absence of ganglion cells in the distal part of the colon, leading to functional obstruction. The affected segment of the colon lacks the normal peristaltic movements, resulting in an accumulation of faecal matter. The stools passed by infants with Hirschsprung disease are often constipated, and the narrow, ribbon- like appearance is a result of the narrowed segment of the colon.

diarrhea (option B) is incorrect because it, is not typically associated with Hirschsprung disease. Instead, the condition presents with constipation due to the obstructed bowel.

foul-smelling, fatty stools in (option C) is incorrect because it, is not characteristic of Hirschsprung disease. This finding may be associated with malabsorption disorders such as cystic fibrosis or celiac disease, but not specifically with Hirschsprung disease.

"currant jelly" stools in (option D) is incorrect because it, is a term commonly used to describe the stools seen in intussusception, which is a different condition involving the telescoping of one segment of the bowel into another. It is not an expected finding in Hirschsprung disease.

Diarrhea is characterized by increased motility of the intestines, which leads to a decreased absorption of fluid and nutrients. This statement correctly indicates an understanding of the teaching regarding diarrhea.

Organisms destroy intestinal mucosal cells, resulting in an increased intestinal surface area in (Option A) is incorrect because organisms causing diarrhea can lead to damage or inflammation of the intestinal mucosal cells, but they do not destroy them to increase the intestinal surface area.

Malabsorption results in metabolic alkalosis in (Option B) is incorrect because malabsorption does not result in metabolic alkalosis. Malabsorption refers to the impaired absorption of nutrients, but it does not directly affect the acid-base balance in the body.

Diarrhea results from a fluid deficit in the small intestine in (Option D) is incorrect because diarrhea does not result from a fluid deficit in the small intestine. Diarrhea is characterized by an increased volume of fluid in the intestines and increased frequency of bowel movements.