What is the primary purpose of administering anticoagulants post-surgery?

The primary purpose of administering anticoagulants post-surgery is to prevent deep vein thrombosis (DVT). After surgical procedures, patients may experience reduced mobility and changes in blood flow, which can increase the risk of clot formation in the veins, particularly in the legs. Anticoagulants, such as heparin or warfarin, work by inhibiting the coagulation cascade, thus reducing the blood's ability to form clots. This is crucial in the postoperative setting to enhance circulation and mitigate the risk of developing clots that could lead to serious complications, such as pulmonary embolism.