SBB Practice test Review with correct answers

When preparing cryoprecipitate from plasma, the cryoprecipitate must be refrozen within? correct answers1 hour Donated blood may not be used for allogeneic transfusion when HCV testing shows? correct answersEIA initial testing reactive, and one of the duplicate repeat results is reactive The following hepatitis B testing results indicates: HBsAg: Nonreactive, Anti-HBc: Reactive, Anti-HBs: Reactive, RNA HBV: nonreactive. correct answersRecurring infection (CDC says immune due to natural infection) The antigen that occurs in approximately 20% of individuals of African ethnicity is? correct answersJs a The Diego blood group is of anthropological interest because? correct answersDi a is more frequent in individuals of Mongolian ancestry Which antigen is a CR1? correct answersMcC c MHC Class II are found on? correct answersDendritic Cells Antigen-presenting cells such as dendritic cells, mononuclear phagocytes, some endothelial cells, thymic epithelial cells, and B cells. The Fc receptor on phagocytes that has the highest affinity for binding IgG is? correct answersFcR1 The hospital blood banks that collect blood but do not ship across state lines must be correct answersRegistered with the FDA