1. “Attorney-in-fact” means an attorney-in-fact authorized to act pursuant to the Oklahoma Health Care Agent Act,¹ with authority to act regarding the patient's health and medical care decisions, subject to the limitations under the Oklahoma Health Care Agent Act;

2. “Guardian” means a general guardian of the person appointed pursuant to subsection A of Section 3-112 of Title 30 of the Oklahoma Statutes or a limited guardian of the person appointed pursuant to subsection B of Section 3-112 of Title 30 of the Oklahoma Statutes with the authority to make personal medical decisions as determined under paragraph 5 of subsection B of Section 3-113 of Title 30 of the Oklahoma Statutes;

3. “Health care provider” means a person who is licensed, certified or otherwise authorized by the laws of this state to administer health care in the ordinary course of business or practice of a profession;

4. “Health care proxy” means a health care proxy or alternate health care proxy authorized to act pursuant to the Oklahoma Advance Directive Act, Sections 3101.1 through 3101.16 of this title, as defined in paragraph 6 of Section 3101.3 of this title; and

5. “Other legally authorized person” means a person, other than a minor's custodial parent or guardian, the patient or the patient's attorney-in-fact, guardian or health care proxy, who has authority to make health care decisions for the patient under common law.