Amount of ORS given in 4 KG children with diarrhea :
The family should be provide with at least two days worth of ORS packets.
WHO recommends, in addition to infants continued to be breastfed, that children older than six months be given some food before being sent home, which helps to emphasize to parents the importance of continuing to feed the child during diarrhea.
Body wt = 4 kg.
Requirements 75 ml/kg.
 So total requirements 75x4 = 200 ml.
200 ml
300 ml
400 ml
800 ml