A nurse is caring for a child who has had diarrhea for 3 days. Which of the following actions should the nurse take?

A. Weighing the child weekly is not an appropriate intervention for managing acute diarrhea, as it does not address the immediate concern of dehydration or infection. B. Keeping the child NPO for 12 hours is generally not recommended unless the child is severely dehydrated or vomiting, as it could lead to further dehydration. Hydration and appropriate refeeding are important in managing diarrhea. C. A stool culture can help determine the cause of diarrhea (such as bacterial infection) and guide appropriate treatment. This is a priority in determining the underlying cause of the child's symptoms. D. Offering apple juice is not recommended for diarrhea, as high fructose content can worsen diarrhea. Oral rehydration solutions (ORS) or clear fluids are more appropriate.