<prompt> A child suffering from acute diarrhoea is brought to the casualty and is diagnosed as having severe dehydration with pH of 7.23. Serum Na-125, Serum K-3, HCO3- 16 The best I.V. fluid of choice is ?3 SalineN3 Saline 10 dextroseNormal salineN3 saline 5 dextrose  <response>: Ans. is c i.e., Normal saline Fluid used in severe dehydration o Best IV fluid for severe dehydration is Ringers lactate. o An ideal preparation would be Ringers lactate with 5 added dextrose, However, it is not available. o If Ringers lactate is not available, normal saline solution 0.9 NaCI can be used. 