As used in this part:
(1) “Health care” has the same meaning as defined in § 68-11-1802 of the Tennessee Health Care Decisions Act, compiled in title 68, chapter 11, part 18;
(2) “Health care decisions” has the same meaning as defined in § 68-11-1802 of the Tennessee Health Care Decisions Act;
(3) “Health care institution” has the same meaning as defined in § 68-11-1802 of the Tennessee Health Care Decisions Act;
(4) “Health care provider” has the same meaning as defined in § 68-11-1802 of the Tennessee Health Care Decisions Act;
(5) “In loco parentis” means “in the place of a parent” and refers to the legal responsibility taken by a person or organization to assume some of the functions and responsibilities of a parent or legal guardian; and
(6) “Reasonably available” has the same meaning as defined in § 68-11-1802 of the Tennessee Health Care Decisions Act.