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

2. “Final stage” means the last stage of a terminal illness or injury in which, even with the use of medical treatment, the person with the terminal illness or injury is in the dying process and will die within a reasonably short period of time;

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

4. “Incompetent patient” means any person who:

5. “Nutrition” means sustenance administered by way of the gastrointestinal tract;

6. “Physician” means a physician or surgeon licensed by the State Board of Medical Examiners or State Board of Osteopathy; and

7. “Terminal illness or injury” means an incurable and irreversible medical condition that, even with the use of medical treatment, will result in the death of a person from that condition or a complication arising from that condition.