DVT is a possible complication of joint replacement. Low-molecular-weight heparin, enoxaparin (Lovenox), dalteparin (Fragmin), or tinzaparin (Innohep) can be administered to prevent this problem. Assess for signs of thrombus formation, checking calf for warmth, swelling, and pain on foot dorsiflexion. Respiratory, encourage pt to use incentive spirometer and circulatory complications, Circulation should be checked after each application of the wedge to be certain that the straps are not too tight. Skin should be assessed every shift on the surface of the legs with particular attention to areas over bony prominences.