A nurse on a medical-surgical unit is caring for a client who asks about advance directives and states that he wants to appoint a health care proxy. Which of the following responses should the nurse make?

You must choose a member of your family to serve as you health care proxy

A health care proxy can make decisions for you when you are unable to do so

You should appoint a health care proxy before undergoing an invasive procedure

It is necessary for an attorney to approve your healthcare proxy