 At the time of admission, the patient has a normal prothrombin time and INR of 13.4 seconds and 1.09 respectively and postoperatively, she was placed on Coumadin which is the usual orthopedic surgery procedure for reducing the risk of postoperative thromboembolic activity. 
At the time of admission , the patient has a normal prothrombin time and INR of 13.4 seconds and 1.09 respectively and postoperatively , she was placed on Coumadin which is the usual orthopedic surgery procedure for reducing the risk of postoperative thromboembolic activity .