Answer: She needs to take of the child so that he can intake fluids as all the fluids he is ingesting is getting dehydrated by the body.
Step-by-step explanation:
The child is having mild fever and is constantly vomiting and diarrhea. In these two cases the water from the body is constantly going out and along with water electrolytes also drain out of the body.
The nurse action will be to stop the fluid loss from the body of the child and then further actions can be taken.