A nurse is teaching a school-age child who has type 1 diabetes mellitus and their parents about management during an illness. Which of the following instructions should the nurse include? (Select All that Apply.)

A. Offering fluids with carbohydrates when solid foods aren’t tolerated helps maintain blood sugar levels. B. Testing urine for protein is not a standard recommendation during illness; ketone testing is more relevant. C. Sugary fluids can help prevent hypoglycemia during illness, so limiting sugar might not be appropriate. D. Carbohydrate intake should not be limited during illness, as it is needed to maintain blood glucose levels. E. Testing for ketones helps identify diabetic ketoacidosis risk during illness. F. Insulin should not be withheld during illness, as insulin needs may actually increase.