preoperative exercise instrutions , early ambulation , calf exercise , antiembolism hose , postoperative circle-bed turning and use of the trendelenburg position , the use of intravenous dextran postoperatively and , in selected cases , low doses of sodium warfarin ( coumadin ) form the foundation of our approach to the prophylaxis of thromboembolic phenomena .
C0376218
sodium warfarin
C0699129
coumadin