Which statement indicates a client understands discharge instructions for using a walker?

The understanding of discharge instructions for using a walker is best illustrated by the choice regarding hiring someone to trim the tree near the stairs. A walker is used for mobility assistance, and ensuring that pathways are clear and safe is essential for preventing falls or accidents. Overhanging tree branches or any potential hazards near stairs can pose a significant risk for someone using a walker. By recognizing the need to hire someone to address this safety concern, the client demonstrates awareness of the importance of maintaining a safe environment as part of their recovery and mobility aids use.

The other choices reflect misunderstandings about safety in relation to using a walker. For instance, placing an extension cord across the living room can create a tripping hazard, and putting an alarm clock across the room may encourage unnecessary movement, which could be dangerous for someone unsteady on their feet. Lastly, replacing an old rug with a new one doesn't inherently guarantee safety, especially if rugs can still be a tripping hazard, unless it adheres to safety standards.