Final answer:
The most appropriate communication strategy for a student nurse caring for a confused client with Alzheimer's disease is to provide simple, concrete instructions.
Step-by-step explanation:
The most appropriate communication strategy to be used by the student nurse caring for a 72-year-old client with Alzheimer's disease who is very confused is to provide simple, concrete instructions. This means using clear and straightforward language while communicating with the client. Complex medical terminology should be avoided as it may further confuse the client. Speaking loudly is also not recommended as it may agitate the client instead of ensuring understanding. Ignoring the client's communication attempts would be inappropriate as it can make the client feel frustrated or neglected.