A. When a patient, because of a medical condition, is treated by a licensed medical doctor or doctor of osteopathy holding a faculty appointment at a medical school accredited by the Liaison Committee on Medical Education or American Osteopathic Association, or holding clinical privileges at a healthcare institution that conducts human subject research approved by an accredited institutional review board, and such patient is incapable of giving informed consent for an accredited-institutional-review-board-approved experimental treatment, test or drug, then the administration of such treatment, test or drug may proceed upon obtaining informed consent of a parent, legal guardian, attorney-in-fact with health care decision authority, or a family member in the following order of priority:

B. If the patient is an adult, nothing in this section shall authorize such legal guardian, attorney-in-fact or family member to consent to treatment in contravention to such incapacitated patient's expressed permission or prohibition regarding such treatment.

C. In a life-threatening emergency, consent of such an incapacitated person to any research program or experimental procedure shall not be required when the accredited institutional review board responsible for the review, approval and continuing review of the research activity has approved both the research activity and a waiver of informed consent and has both found and documented that the requirements for an exception from informed consent requirements for emergency research, as provided under Part 50 of Title 21 or Part 46 of Title 45 of the Code of Federal Regulations, as amended, have been satisfied. This subsection shall apply to all pre-hospital or hospital research conducted by a licensed medical doctor or doctor of osteopathy.

D. Nothing in this section shall permit a parent, legal guardian, attorney-in-fact or family member to authorize the use of an experimental treatment, test or drug on a pregnant patient.