Ohio Rev. Code Ann. § 2133.22
(A)
(1) None of the following are subject to criminal prosecution, to liability in damages in a tort or other civil action for injury, death, or loss to person or property, or to professional disciplinary action arising out of or relating to the withholding or withdrawal of CPR from a person after DNR identification is discovered in the person's possession and reasonable efforts have been made to determine that the person in possession of the DNR identification is the person named on the DNR identification:
(2) None of the following are subject to criminal prosecution, to liability in damages in a tort or other civil action for injury, death, or loss to person or property, or to professional disciplinary action arising out of or relating to the withholding or withdrawal of CPR from a person in a health care facility after DNR identification is discovered in the person's possession and reasonable efforts have been made to determine that the person in possession of the DNR identification is the person named on the DNR identification or a do-not-resuscitate order is issued for the person: