The items of blood test when donating blood include: i. Routine blood test and blood group test. The routine blood test and blood group test are to find out whether the patient is anemic and whether he/she has any blood system diseases. Second, liver and kidney function tests should be performed to determine whether the donor’s transaminases are normal, and whether the urea nitrogen and creatinine are normal. If the aminotransferase concentration is increased or the urea nitrogen creatinine concentration is increased, it means that there are problems with liver and kidney function, and in this case, the donor should not donate blood. Serological examination, including hepatitis B surface antigen test, hepatitis C antibody test, syphilis antibody test, AIDS antibody test. If the antibodies are positive. This means that the donor is carrying these viruses in his or her body and cannot donate blood.