Final answer:
The correct statement indicating that the client understands the discharge teaching is option B: "I need to elevate the foot of my bed while sleeping." Patient education for chronic venous insufficiency primarily focuses on reducing venous stasis and preventing complications. Elevating the legs above the level of the heart while sleeping helps to reduce swelling and improve venous return.
Step-by-step explanation:
The correct statement indicating that the client understands the discharge teaching is option B: "I need to elevate the foot of my bed while sleeping."
Patient education for chronic venous insufficiency primarily focuses on reducing venous stasis and preventing complications. Elevating the legs above the level of the heart while sleeping helps to reduce swelling and improve venous return. This position promotes blood flow towards the heart, preventing blood pooling and reducing the risk of blood clots.