A nurse is receiving a client who is immediately postoperative following hip arthroplasty. Which of the following medications should the nurse plan to administer for DVT prophylaxis?

A. Enoxaparin (Lovenox) subcutaneous: Enoxaparin is a low-molecular-weight heparin routinely used after orthopedic surgeries to prevent DVT. It provides predictable anticoagulation, is given subcutaneously, and is the standard prophylactic therapy following hip arthroplasty. B. Clopidogrel (Plavix): This antiplatelet medication is not used for routine DVT prevention after surgery. It is more commonly prescribed for coronary stent management and other arterial thrombotic risks rather than postoperative venous thrombosis. C. Aspirin PO: Although sometimes used for low-risk joint-replacement patients, it is not the primary or most reliable choice for immediate postoperative prophylaxis. More potent anticoagulation is preferred to prevent deep vein thrombosis after major orthopedic procedures. D. Heparin infusion: Continuous IV heparin is generally reserved for active DVT treatment or high-risk situations. It is too aggressive for routine prophylaxis and carries greater bleeding risk compared with subcutaneous LMWH.