(1) the adult has been found to lack health care decision making capacity under Section 75-2a-104;
(2) the adult grants current authority to the surrogate either: (a) in writing; or (b) by other expression before a witness who is not the surrogate or agent; or
(a) in writing; or
(b) by other expression before a witness who is not the surrogate or agent; or
(3) the court appoints a guardian authorized to make health care decisions on behalf of the adult.