(1) An individual is dead if the individual has sustained either: (a) irreversible cessation of circulatory and respiratory functions; or (b) irreversible cessation of all functions of the entire brain, including the brain stem.
(a) irreversible cessation of circulatory and respiratory functions; or
(b) irreversible cessation of all functions of the entire brain, including the brain stem.
(2) A determination of death shall be made in accordance with accepted medical standards.