American red cross coloring pages

Leukocytes (white blood cells) help fight off foreign substances such as bacteria, viruses, and abnormal cells. In fact, these foreign leukocytes in transfused red blood cells and platelets are often not well tolerated and have been associated with some types of transfusion complications. Leukocytes in stored blood products can have a variety of biological effects, including depression of immune function, which can result in organ failure and death. Because whole blood is rarely used for transfusion and not kept in routine inventory, leukoreduced red blood supplies are critical. After collection, the whole blood is separated into red cells and plasma by centrifugation. A preservative solution is mixed with the red cells and the component is filtered with a leukoreduction filter. The shelf life of this product is 42 days.