A nurse is providing preoperative teaching for a client who will undergo surgery. The nurse explains that the client will wear antiembolism stockings during and after the procedure. When the client asks what the stockings do, which of the following responses should the nurse make?

Choice A rationale While maintaining normothermia is a critical aspect of perioperative care to prevent surgical site infections and promote proper wound healing, antiembolism stockings are not designed for thermal insulation. Specialized equipment like forced-air warming blankets or warmed intravenous fluids are used for temperature regulation. Attributing warmth to these stockings is scientifically inaccurate because their synthetic material and pressure profile do not provide significant heat retention for the client. Choice B rationale Antiembolism stockings provide graduated compression, which is highest at the ankle and decreases as it moves up the leg. This external pressure reduces the diameter of distended veins and increases venous blood flow velocity. By preventing venous stasis and the pooling of blood in the lower extremities, these stockings significantly lower the risk of deep vein thrombosis and subsequent pulmonary embolism, which are common and dangerous complications during and after surgical procedures. Choice C rationale These stockings do not facilitate the mechanical process of performing leg exercises such as ankle pumps or knee flexions. While both stockings and exercises aim to prevent venous stasis, the stockings are a passive intervention. Performing leg exercises requires active muscle contraction to engage the skeletal muscle pump. There is no physiological or mechanical evidence to suggest that the presence of compression hosiery makes the physical movement of the limbs easier for the client. Choice D rationale While protecting the skin is important, the primary purpose of antiembolism stockings is vascular, not dermatological. In fact, if improperly sized or applied, these stockings can actually increase the risk of skin breakdown, especially over bony prominences like the heels or the bridge of the foot. To prevent pressure injuries on the heels, nurses should use specific pressure-relieving devices or floating techniques rather than relying on compression stockings for skin protection.