What is a blood transfusion reaction?
This is a complication of blood transfusion in which there is an immune response against the transfused blood cells. Transfusion of blood between compatible groups causes no problem. Blood transfusion between incompatible groups causes an immune response against the cells that carry the antigen, resulting in transfusion reaction. The immune system of the recipient attacks the donated blood cells, causing them to break. Serious symptoms such as kidney failure and shock may occur. Other symptoms may include fever, rash, blood in the urine and dizziness.