Results: (1) The rate of prevention of reasonable venous thromboembolism was very high (96.95%); (2) According to VNHA 2016's guidance, the percentage of patients using a suitable anticoagulant is 93.89%; (3) All surgical patients have an appropriate time for taking anticoagulants; (4) There is a high proportion of appropriate timing of using drugs to prevent venous thromboembolism, including orthopedic surgery (82.25%), nonorthopedic surgery (72.22%); (5) The proportion of patients with non-orthopedic surgery who have used anticoagulants in accordance with the recommendation is 71.43%, while the orthopedic surgery patients have time to use anticoagulants which conforms to recommendations is lower (43.55%).