The concentration of sodium ions in the standard WHO oral rehydration solutions is:: (A) 40m moles/L, (B) 60 m moles/L, (C) 90m moles/L, (D) 110 m moles/L
Answer is C. (Ref: KDT 6/e p658, 659) Concentraton of Na+ is 90m mole/L in standard WHO-ORS whereas it is 75 m mole/L in New formula ORS