Plaintiff appointed nephew as  his health care agent and attorney-in-fact using an advance health care directive and power of attorney for health care decisions form developed by the California Medical Association.  After signing a contract to admit plaintiff to defendant’s health care facility, nephew executed an optional arbitration agreement on plaintiff’s behalf.  This decision holds that the directive and power of attorney allowed nephew only to make health care decisions on plaintiff’s behalf, and not to bind him to optional arbitration agreements.