A nurse is caring for a client who is postoperative following a total knee replacement. Which of the following actions should the nurse implement to prevent deep vein thrombophlebitis?

Choice A rationale Knee flexion can potentially compress the popliteal vein, thereby impeding venous return from the lower extremity, which can increase the risk of venous stasis and subsequent Deep Vein Thrombophlebitis (DVT) formation. After a total knee replacement, the affected leg is often kept in a neutral or extended position. Choice B rationale Increased fluid intake (hydration) helps to decrease blood viscosity, making the blood less prone to clotting. This action supports adequate circulatory volume and flow, thereby reducing venous stasis and contributing to the overall preventative strategy against Deep Vein Thrombophlebitis (DVT) formation. Choice C rationale Massaging the calf is contraindicated because, if a thrombus (clot) has already formed in the deep veins, the mechanical action of the massage could dislodge the clot, converting it into a potentially life-threatening pulmonary embolism (PE). Choice D rationale Prolonged bed rest is a major risk factor for DVT because it leads to venous stasis, where blood pools in the extremities due to lack of muscle contraction. Early ambulation and leg exercises, rather than prolonged bed rest, are essential for promoting venous return and preventing DVT.