Patent ID: 7491411

Claim:
A flexible bag assembly comprising: at least first and second compartments; a first predetermined volume of an aqueous sodium bicarbonate component solution, said first predetermined volume being provided in at least one of the at least first and second compartments; and a second predetermined volume of an aqueous acid component solution, said second predetermined volume being provided in at least another of the at least first and second compartments, said aqueous acid component solution having an amount of dissolved carbon dioxide, the aqueous sodium bicarbonate component solution and the aqueous acid component solution being mixable together to obtain a peritoneal dialysis, hemodialysis, or replacement fluid, wherein the amount of dissolved carbon dioxide in the aqueous acid component solution is such that a partial pressure value of said carbon dioxide exhibited by said aqueous acid component solution substantially matches a partial pressure value of carbon dioxide exhibited by said aqueous sodium bicarbonate component solution.