Abstract
The fundamental principle of modern-day bioethics is that “the competent adult has the right to accept or refuse all medical care, including life-saving medical care,” a principle that has been upheld by the U.S. Supreme Court in Bouvia v. Superior Court ) and Cruzan v. Director, Missouri Department of Health ). If the adult lacks decision-making capacity, a surrogate can speak on his or her behalf. The adult may have chosen his or her surrogate through an advance directive; if not, laws assign guardianship based on a hierarchy of relationships. Surrogates are expected..