Hello, I would like to ask what is the part of blood transfusion treatment that does not require double signature? The link that does not need double signature in blood transfusion treatment is the first nine tests of blood transfusion. Before blood transfusion, the nine tests were all conducted by individuals, and both sides conducted the tests by themselves and signed their names, without the need for two people to test together. Therefore, the nine tests before blood transfusion are the links of blood transfusion treatment without double signature.