Ohio Rev. Code Ann. § 2108.24
(A) As used in this section:
(C) If a prospective donor has a declaration or advance health-care directive the terms of which are in conflict with the express or implied terms of a potential anatomical gift with regard to administration of measures necessary to ensure the medical suitability of a part for transplantation or therapy and the prospective donor is incapable of resolving the conflict, one of the following shall apply depending on the circumstances:
(2) If the prospective donor does not have an agent, the individual or class of individuals determined in the following descending order of priority and subject to divisions (D), (E), (F), and (G) of this section shall act for the prospective donor to resolve the conflict: