PURPOSE: The titled base solution that contains glucose and electrolytes consisting of Na, K, Ca, Mg, P and Cl in a specific range with a pH more close to neutrality, thus causing no precipitation and having few chances to be contaminated by bacteria with good handleability.

CONSTITUTION: The titled base solution is prepared by sterilizing a solution containing 200W500g/l glucose, 25W75mEq/l Na, 25W75mEq/l K, 5W25mEq/l Ca, 5W25mEq/l Mg, 5W25mEq/l P and 25W75mEq/l Cl at 60W75°C and adjusting the pH to 5.0W5.5. The base solution causes no change with time, even when stored for a long period of time and meets the sterility test according to Pharmacopoeia of Japan, containing simultaneously both Ca and P in the same preparation and having a pH value close to that of blood. When necessary, sodium hydrogen sulfite, which is usually used as a discoloration preventive, may be added to prevent glucose from yellowing.