Transfusion Reactions
Basic Information
Definition
Transfusion reactions include urticaria, fevers, and hemolysis caused by antibodies in the recipient directed against components of the transfused product, including antigens on the red blood cells (RBCs) themselves, plasma proteins, or antigens on contaminating white blood cells or platelets.
Epidemiology & Demographics
• Transfusion-related acute lung injury has an estimated frequency of 1 in 10,000 units of RBCs transfused, and it is more likely to occur in the setting of sepsis.
Clinical Presentation
• Febrile nonhemolytic reactions can be associated with shortness of breath, pain in the chest, back or neck pain, fevers, tachypnea, and hypertension.
• Delayed hemolytic transfusion reactions occur 3 to 14 days after a transfusion and are characterized by fever, jaundice, and hemoglobinuria.
• Transfusion-related acute lung injury causes dyspnea within 4 hours of a transfusion and is characterized by hypoxia and respiratory distress.
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