Final answer:
You should monitor the client for signs and symptoms of bleeding as an adverse effect of warfarin.
Step-by-step explanation:
As a nurse caring for a client recovering from deep-vein thrombosis and starting warfarin, you should monitor for adverse effects of warfarin. One of the possible adverse effects of warfarin is bleeding. Since warfarin is an anticoagulant, it inhibits clotting factors, which can increase the risk of bleeding. Therefore, you should monitor the client for signs and symptoms of bleeding, such as easy bruising, nosebleeds, bleeding gums, blood in urine or stools, and prolonged bleeding from cuts or wounds.