Viability and Function of Preserved Red Cells

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Abstract
PRESERVATION of human red cells is considered to be satisfactory when the red cells are circulating and functioning immediately after transfusion: this applies whether the preservation procedure involves a liquid medium with storage at 4°C, a freeze-preservation technic using various cryoprotective agents and storage at either —80 or —150°C or a combination of the liquid and freezepreservation approaches. Blood for freezing is collected in one of several liquid preservatives — acid-citrate-dextrose (ACD), citrate-phosphate-dextrose (CPD), ACD plus adenine, or CPD plus adenine, with our without inosine; it is then frozen by one of a number of procedures, stored at either —80 . . .