Скачать или смотреть রক্তের গ্রুপ নির্ণয় পদ্ধতি SSC | Biology | HSC | Blood Group | Uttoron Study Care|

রক্তের গ্রুপ নির্ণয় পদ্ধতি SSC | Biology | HSC | Blood Group | Uttoron Study Care|
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👨‍🎓 Instructor:
Md.Rafiqul Islam, (43 BCS- Education Cadre)
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🔶 প্রত্যাশা থাকবে এই ফ্রি ক্লাসটি সবাই দেশের সব প্রান্তে পৌঁছে দিবে। যত বেশি পারো শেয়ার করবে।

Blood grouping is done on the basis of agglutination. Agglutination means the collection of separate particles like RBCs into clumps or masses. Agglutination occurs if an antigen is mixed with its corresponding antibody which is called isoagglutinin, i.e. occurs when A antigen is mixed with anti-A or when B antigen is mixed with anti-B.
The antibody of the donor and antigen of the recipient are ignored mostly. Thus, RBC of ‘O’ group has no antigen and so agglutination does not occur with any other group of blood. So, ‘O’ group blood can be given to any blood group persons and the people with this blood group are called „universal donors‟.
Plasma of AB group blood has no antibody. This does not cause agglutination of RBC from any other group of blood. People with AB group can receive blood from any blood group persons. So, people with this blood group are called „universal recipients‟.
In mismatched transfusion, the transfusion reactions occur between donor’s RBC and recipient’s plasma. So, if the donor’s plasma contains agglutinins against recipient’s RBC, agglutination does not occur because these antibodies are diluted in the recipient’s blood.
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