Question

Describe what precautions must be taken before giving a blood transfusion and why

Answer 1

the blood groups of both people must be the same

Answer 2

$\huge \bf \blue{ANSWER:-}$

• It is necessary to match the type of blood of the donor and recipient. The antigens and antibodies present in blood act against each other when the blood of opposite antigen bis transfused into the body of person. The antibodies of person act against the antigen and cause clumping of blood. It lead to infections or even death. Thus, the transfusion must be done by matching the types of blood of the donor and recipient.