<prompt> Amount of ORS to be given in the first 4 hours to a child with some dehydration is50 mlkg body wt.75 mlkg body wt.100 mlkg body wt.200 mlkg body wt.  <response>: Treatment plan B: in case of some dehydration 75 mlkg of ORS in the first 4 hours.use child;s age when you donot know the weight. The signs of dehydration disappears in 4 hours.after this maintainance fluid therapy can be done. Ref : ESSENTIAL PEDIATRICS,O.P.GHAI,PG NO:265,7 th edition 