Final answer:
To promote venous return in a client with chronic venous insufficiency, the nurse should encourage the client to lie down in bed 2 times a day.
Step-by-step explanation:
To promote venous return in a client with chronic venous insufficiency, the nurse should encourage the client to lie down in bed 2 times a day. Lying down helps to elevate the legs and reduce swelling, allowing blood to flow back towards the heart more easily. This position takes advantage of gravity to assist with venous return.