Clinical flow chart Flow chart for reporting adverse events of clinical blood use in hospitals II. Operational Procedure of Using Blood Transfusion Device 3. Hospital clinical blood flow chart Blood function, immunity, etc. type, blood routine, irregular antibody, liver Inform the risk clause of blood transfusion, choose the mode of blood transfusion, fill in the items one by one, no blank items, both sides sign. Fill in item by item, not empty items, emergency marked "urgent"; medical insurance approval, please indicate; graded management, a large number of blood transfusion need to be examined and approved. Check the patient's information, and at least indicate the patient's name, hospital number and department on the specimen. The sample is consistent with the application form. The blood collector signs the application form for blood transfusion. Specimens and application forms shall be sent to the Blood Transfusion Department by medical or professional personnel, and the registration and signature shall be checked by both parties one by one. Check the information of blood samples of application forms, donors and recipients one by one, review the blood groups of donors and recipients, cross match blood according to operation rules, check and sign according to regulations. Check the information of blood samples of application forms, donors and recipients one by one, review the blood groups of donors and recipients, cross match blood according to operation rules, check and sign according to regulations. Before and during blood transfusion, the matching report, blood bag label and recipient information were checked by two medical staff. After blood transfusion, blood quality was checked, blood was not allowed to be stored by themselves and other medicines were added, transfusion and monitoring were carried out according to relevant regulations, adverse reactions of blood transfusion were detected and handled in time, and recorded. The course records are complete and detailed, including at least the cause of blood transfusion (pre-transfusion assessment), communication with patients, infusion components, quantity and blood type, observation of the transfusion process, adverse reactions to blood transfusion, evaluation of transfusion effect, etc.The volume of blood transfusion, the amount of blood transfusion and the course of the disease are consistent. When there are adverse reactions of blood transfusion, fill in the form of adverse reactions of blood transfusion in time and send it to the transfusion department.Blood bags should be handled as required after blood transfusion. Note:Emergency blood use shall be carried out according to relevant regulations. IV. Emergency Coordination Process for Special Blood Use 5. Approval process for emergency blood transfusion under special circumstances VI. Procedures for Examination and Registration of Blood Transfusion Application and Registration of Blood Application for Approval 7. Flow chart of blood transfusion sample collection VIII. Flow chart of specimen sending and receiving 9. Blood distribution and blood flow chart 10. Flow chart of blood storage quality testing Flow chart of blood storage quality feedback 12. Flow chart of blood transfusion