TY - CHAP M1 - Book, Section TI - Blood Preservation and Storage A1 - Yosaitis, John A2 - Freeman, Brian S. A2 - Berger, Jeffrey S. PY - 2014 T2 - Anesthesiology Core Review: Part One Basic Exam AB - The volume of a unit of blood is approximately 1 pint (450-500 mL). Units of blood collected from donors are separated into multiple components, such as packed red blood cells, platelets, and plasma. Red blood cells may be stored for a maximum of 42 days. Older blood is less effective. It has been clear for some time that stored blood degrades before the 42-day limit, and some research suggests that this degradation may be harmful to patients who receive older blood. In fact, 75% of red blood cells should survive posttransfusion to be classified as a successful transfusion. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/20 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1102570142 ER -