Which non-pharmacologic interventions can assist a client with a backache after medication has been administered?

The choice of assisting the client into a side-lying position is effective for managing backache as it can directly relieve pressure and tension in the back. This position often allows for better alignment of the spine and reduces strain on back muscles, potentially alleviating pain. By promoting relaxation and comfort, this intervention helps to create a physical environment that supports pain relief, especially after medication has been administered.

While other options are beneficial in their own right, they serve different purposes. Educating the client about pain control enhances their understanding and empowers them to manage pain but does not provide immediate relief. Distraction techniques can help shift focus away from the pain but may not address the underlying discomfort directly. Providing heat therapy is also a valid non-pharmacologic intervention known to soothe pain and promote healing, but its effectiveness can vary depending on the individual's condition and tolerance.

The side-lying position is a specific, practical step that can result in immediate comfort, making it an excellent choice in this context.