Pediatrics Amount of ORS to be given in the first 4 hours to a child with some dehydration is A 50 ml/kg body wt. B 75 ml/kg body wt. C 100 ml/kg body wt. D 200 ml/kg body wt. 💡 Explanation Amount of ORS to be given in the first 4 hours to a child with some dehydration is ✓ Correct Answer: B. 75 ml/kg body wt.