Concentration of sodium in mOsm/l in low osmolar ORS is?: (A) 45, (B) 75, (C) 90, (D) 60
Answer is B. Concentration of sodium in low osmolar ORS is 75 mOsm/l Osmolarity reduced to avoid possible adverse effects of hypeonicity on net fluid absorption by reducing the concentration of glucose and sodium chloride in the solution . Ref: PARK&;S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 23rd edition pg 224