Abstract: Objective To study the amount and therapeutic effects of blood transfusion and formulate the storage and scheme optimization for blood use in emergency medicine in the hospital. Methods Clinical data of 219 patients with urgent blood transfusion were retrospectively analyzed from 2013 to 2015. The variety of diseases,blood types, consumption of red blood cells,plasma,apheresis platelets and cryoprecipitate were statistically analyzed,respectively. Results Blood of group A was more frequently used than other blood types in emergency treatments,and only less than 10% of total blood was used for transfusion on emergency.The average usage of red blood cells in trauma was （8.27±4.77） U,significantly higher than that in obstetrics and gastrointestinal and other unexpected hemorrhages．The frequencies of plasma,apheresis platelets and cryoprecipitate consumption in obstetric bleedings were（852.27±185.45）mL,（6.82±8.94）U,and （6.18±8.94）U,respectively, which was remarkably higher than in other diseases．Patients with blood transfusion on emergency still showed various degrees of anemia while the coagulation index generally recovered. Conclusion The inventory of the group A blood for first-aid use in the hospital should be increased. The secure amount of blood in storage should be ensured based on the consumption of blood and blood products for emergency treatments．

Key words: Blood for emergency use, Component blood transfusion