Okla. Stat. tit. 63, § 63-3105.2

As used in the Physician Orders for Life-Sustaining Treatment

Act:

1. "Attorney-in-fact" means an attorney-in-fact authorized to

act pursuant to the Oklahoma Health Care Agent Act, 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.