If artificial means of support preclude a determination that a person's spontaneous respiratory and circulatory functions have ceased, the person is dead when, in the announced opinion of a physician, according to ordinary standards of medical practice, there is irreversible cessation of all spontaneous brain function.
Death occurs when the relevant functions cease.
Those policies must include physician assistants who are credentialed or otherwise permitted to practice at the facility, institution, or entity. If the facility, institution, or entity has an organized nursing staff and an organized medical staff or medical consultant, the nursing staff and medical staff or consultant shall jointly develop and approve those policies. The board shall adopt rules to govern policies for facilities, institutions, or entities that do not have organized nursing staffs and organized medical staffs or medical consultants. Acts 1989, 71st Leg. Sept. 1, 1989.