ive, and at the same time M and N positive (MNS system), K positive (Kell system), Lea or Leb negative (Lewis system), and so on, being positive or negative for each blood group system antigen. Many of the blood group systems were named after the patients in whom the corresponding antibodies were initially encountered.සායනික වැදගත්කම[සංස්කරණය]රුධිර පාරවිලනය[සංස්කරණය]ප්‍රධාන ලිපිය: Blood transfusionTransfusion medicine is a specialized branch of hematology that is concerned with the study of blood groups, along with the work of a blood bank to provide a transfusion service for blood and other blood products. Across the world, blood products must be prescribed by a medical doctor (licensed physician or surgeon) in a similar way as medicines.Main symptoms of acute hemolytic reaction due to blood type mismatch.[17][18]Much of the routine work of a blood bank involves testing blood from both donors and recipients to ensure that every individual recipient is given blood that is compa