A client has been admitted to the emergency room. The client's family tells the nurse that the client has suddenly become lethargic and is “not making sense”. The client has not had anything to eat or...

A client has been admitted to the emergency room. The client's family tells the nurse that the client has suddenly become lethargic and is “not making sense”. The client has not had anything to eat or drink for the last 8 hours. The nurse further assesses the client using the Confusion Assessment Method (CAM). The client's responses to questions are rambling, and the client is not able to focus clearly to answer the nurse's questions. Based on these findings, the nurse should report that the client has:

1. Dementia.

2. Depression.

3. Delirium.

4. Dehydration.