Banked blood contains many of the factors necessary for hemostasis. The most important components which are not present in stored blood are factor VIII (antihemophilic factor) and platelets. Methods are now available whereby significant concentrations of these components can be achieved from fresh donor blood by the hospital blood bank.
Schmidt PJ, Grindon AJ. Blood and Blood Components in the Prevention and Control of Bleeding. JAMA. 1967;202(10):967–969. doi:10.1001/jama.1967.03130230093016
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