1. “Advance directive for health care” means any writing executed in accordance with the requirements of Section 3101.4 of Title 63 of the Oklahoma Statutes;

2. “Agent” means an individual designated in a power of attorney for health care to make a health care decision for the individual granting the power;

3. “Attending physician” means the physician who has primary responsibility for the treatment and care of a patient;

4. “Capacity” means an individual's ability to understand and appreciate the nature and implications of a health care decision, to make an informed choice regarding the alternatives presented including understanding and appreciating the significant benefits and risks, and to make and communicate a health care decision in an unambiguous manner;

5. “Health care” means any care, treatment, service, or procedure to maintain, diagnose, or otherwise affect an individual's physical or mental condition;

6. “Health care decision” means a decision made by an individual or the individual's agent regarding the individual's health care including:

Health care decision shall not include the ability of the agent to make decisions about the withholding or withdrawal of nutrition or hydration;

7. “Health care facility” means any public or private organization, corporation, authority, partnership, sole proprietorship, association, agency, network, joint venture, or other entity that is established and appropriately licensed in this state to administer or provide health care services. Health care facility includes but is not limited to hospitals, medical centers, ambulatory surgery centers, physicians' offices, clinics, nursing homes, rehabilitation centers, home care agencies, hospices, and long-term care agencies;

8. “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;

9. “Individual instruction” means an individual's direction concerning a health care decision for the individual;

10. “Person” means a person eighteen (18) years of age or older or a minor who may consent to have services provided by health professionals pursuant to Section 2602 of Title 63 of the Oklahoma Statutes;

11. “Physician” means an individual authorized to practice medicine or osteopathy pursuant to Chapter 11 or Chapter 14 of Title 59 of the Oklahoma Statutes;

12. “Power of attorney for health care” means the designation of an agent to make health care decisions for the individual granting the power;

13. “Reasonably available” means readily able to be contacted without undue effort and willing and able to act in a timely manner considering the urgency of the patient's health care needs; and

14. “State” means a state of the United States, the District of Columbia, the Commonwealth of Puerto Rico, or a territory or insular possession subject to the jurisdiction of the United States.