What is the most effective measure to prevent a client with Alzheimer’s disease from wandering?

Placing a chain lock on the door above or below the client's eye level is an effective measure to prevent a client with Alzheimer’s disease from wandering because it creates a physical barrier that is less likely to be noticed or accessed by the client. Individuals with Alzheimer’s may not recognize the need to stay in a safe environment and can easily forget about their surroundings, including exits. By securing doors with locks that are out of their sight and reach, caregivers can help minimize the risk of wandering while allowing for a safer, more controlled environment.

This method is a proactive approach that directly addresses the behavior of wandering, which is common in individuals with Alzheimer's, by restricting access without making the client feel confined or trapped. It is also less intrusive than other methods, allowing for a degree of independence while still maintaining safety.

Other measures, such as ensuring that the client is never left alone or notifying neighbors, may provide some level of support, but they do not address the inherent risk of wandering as directly as a secure door lock does. A safe return bracelet is beneficial for identification purposes if a wandering incident occurs but does not actively prevent wandering like a lock does. Hence, the chain lock stands out as the most effective preventative measure in this scenario.