TY - CHAP M1 - Book, Section TI - Red Cell Transfusion A1 - Lichtman, Marshall A. A1 - Kaushansky, Kenneth A1 - Kipps, Thomas J. A1 - Prchal, Josef T. A1 - Levi, Marcel M. PY - 2011 T2 - Williams Manual of Hematology, 8e AB - Erythrocytes are preserved by liquid storage at 4°C or by frozen storage at either –80°C or –150°C.Preservative solutions for liquid storage all contain glucose, to provide energy, and citrate buffer at an acid pH to prevent coagulation by binding calcium and to counter the marked rise in pH that occurs when blood is cooled to 4°C.CPD-adenine is the preservative solution most used now in the United States. It contains adenine, citrate, phosphate, and dextrose (glucose).Adenine is added to help maintain intracellular levels of ATP.Erythrocytes are then separated and stored in an additive solution that contains glucose, adenine, and mannitol.The remainder of the blood collection is separated into plasma and platelets.Stored erythrocytes develop the so-called storage lesion, characterized in part by reduced levels of ATP, which interfere with glucose metabolism and reduce cell viability. 2,3-Bisphosphoglycerate levels also rapidly fall during storage, which increase the oxygen affinity of hemoglobin and thereby decreases the initial effectiveness of reinfused red cells. Potassium also leaks rapidly from stored cells.Frozen storage requires a cryoprotective agent to avoid hemolysis during freezing and thawing. Glycerol is the most frequently used agent. With proper technique, more than 80 percent of erythrocytes will survive frozen storage and function normally after transfusion. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - hemonc.mhmedical.com/content.aspx?aid=1126655084 ER -