The freshly prepared ORS (Oral Rehydration Solution) should not be used after: (A) 6 hours, (B) 24 hours, (C) 18 hours, (D) 12 hours
Answer is B. Reduced Osmolarity Oral Rehydration Solution (Low Na ORS): WHO NEW ORS
Composition (grams)

Sodium chloride - 2.6
Potassium chloride - 1.5
Sodium citrate - 2.9
Glucose - 13.5
Total -  20.5

Osmolar concentration (mmol/litre)

Sodium - 75
Potassium - 20
Chloride - 65
Citrate - 10
Glucose - 75
Total -245