5 Heparin sodium solution, acidic bicarbonate hemodialysis concentrate, sodium chloride solution, sodium acetate buffer solution, alkaline bicarbonate hemodialysis concentrate, all for use in a low density lipoprotein cholesterol -ldl-c-apheresis system for use in performing ldl-c apheresis to acutely remove ldl-c from the plasma of the patient; all purpose disinfectant for medical instruments; pharmaceutical compositions, namely, heparin sodium solution, acidic bicarbonate hemodialysis concentrate, sodium chloride solution, sodium acetate buffer solution, alkaline bicarbonate hemodialysis concentrate for the treatment of lowering low density lipoprotein cholesterol -ldl-c concentration in a plasma of a patient in an apheresis system