A nurse receives a telephone call from a client's family member, who asks the nurse for an update on the client's condition. Which of the following actions should the nurse take to maintain the client's confidentiality?

Request additional information about the caller's relationship to the client.

Provide a general update about the client's condition over the telephone.

Refer the family member to the client's provider for the update.

Encourage the family member to contact the client directly for information.