A nurse is teaching a school-age child who has type 1 diabetes mellitus and his parents about illness management. Which of the following instructions should the nurse include?

The correct answer is Choice A.Choice A rationaleTesting the urine for ketones is essential for managing type 1 diabetes, especially during illness. Ketones are produced when the body breaks down fat for energy due to insufficient insulin. High levels of ketones can lead to diabetic ketoacidosis, a serious condition that requires immediate medical attention.Choice B rationaleWhile notifying the provider if blood glucose levels are over 350 mg/dL is important, it is not the most immediate action required during illness management. High blood glucose levels can indicate poor diabetes control, but ketone testing is more critical during illness to prevent ketoacidosis.Choice C rationaleWithholding insulin when feeling nauseous is incorrect. Insulin should not be withheld during illness, as blood glucose levels can increase due to stress or infection. Continuing insulin administration is crucial to prevent hyperglycemia and ketoacidosis.Choice D rationaleLimiting fluid intake during mealtime is not recommended. Proper hydration is essential for overall health and helps manage blood glucose levels. Fluids should be consumed as needed, especially during illness.