1. Except as otherwise provided in subsection 2, a principal may not name as agent in a power of attorney for health care:
(a) His or her provider of health care;
(b) An employee of his or her provider of health care;
(c) An operator of a health care facility; or
(d) An employee of a health care facility.
2. A principal may name as agent any person identified in subsection 1 if that person is the spouse, legal guardian or next of kin of the principal.