Final answer:
For a child with mild diarrhea, the nurse would likely recommend an oral rehydrating solution such as Pedialyte to prevent dehydration and replace lost fluids and essential salts.
Step-by-step explanation:
The nurse would most likely advise the parent of a 3-year-old child who has mild diarrhea to use an oral rehydrating solution, such as Pedialyte.
This dietary modification is crucial as it helps to replace lost fluids, salts, and sugars due to diarrhea and prevent the risk of dehydration.
The oral rehydration solutions have been recognized as one of the most significant medical advancements in protecting the health of children, effectively saving millions of lives worldwide. While options like soft foods with rice, bananas, toast, and applesauce can also be helpful in managing diarrhea, ensuring proper rehydration with an oral rehydration solution is essential, especially at the very start of the illness.