Aim: It is aimed in this study to determine blood and blood component’s transfusion indications, component using rate, early transfusion complications and the distribution of complications according to the blood component. Method: In this study, recipient’s name, surname, age, gender, blood component, the clinic where transfusion have done, transfusion indications, whether or not transfusion history and complication, the amount and type of blood component, product waiting period in the blood center, vital findings before and after transfusion. Result: Percentage of transfused products was as follows: whole blood (50%), erytrocyte suspension (26%), fresh frozen plasma (19.8%) and platelet suspension (4.2%). Utilization rate of blood and blood components by service type was as follows: 30.8% in internal medicine, 11.9% in general surgery, 16.8% in obstetrics and gynecology, 15.3% in department of child health and disease and 25.2% in other service. Acute complication was observed in 3% of patients. 1.8% of them was developed acute febrile nonhemolytic transfusion reaction. Urticaria was observed in 0.95% of cases. Hypocalsemia in 2 patients (0.1%), hypotension in 2 patients (0.1%) using ACE inhibitory, hypertension in one patients (0.05%) and hypercalsemia in one patient (0.05%) after transfusion were observed in patients. Conclusion: Full blood utilization rates are high but it’s close to Turkey average. Transfusion-related acute reaction rates were similar literature rates. It has suggested that information work should be increased to increase the use of component and to protect patients from unnecessary risk.