Advance Directive Adherence: Compliance by health personnel or proxies with the stipulations of ADVANCE DIRECTIVES (or similar directives such as RESUSCITATION ORDERS) when patients are unable to direct their own care.Advance Directives: Declarations by patients, made in advance of a situation in which they may be incompetent to decide about their own care, stating their treatment preferences or authorizing a third party to make decisions for them. (Bioethics Thesaurus)Living Wills: Written, witnessed declarations in which persons request that if they become disabled beyond reasonable expectation of recovery, they be allowed to die rather than be kept alive by extraordinary means. (Bioethics Thesaurus)Advance Care Planning: Discussions with patients and/or their representatives about the goals and desired direction of the patient's care, particularly end-of-life care, in the event that the patient is or becomes incompetent to make decisions.Life Support Care: Care provided patients requiring extraordinary therapeutic measures in order to sustain and prolong life.Proxy: A person authorized to decide or act for another person, for example, a person having durable power of attorney.Withholding Treatment: Withholding or withdrawal of a particular treatment or treatments, often (but not necessarily) life-prolonging treatment, from a patient or from a research subject as part of a research protocol. The concept is differentiated from REFUSAL TO TREAT, where the emphasis is on the health professional's or health facility's refusal to treat a patient or group of patients when the patient or the patient's representative requests treatment. Withholding of life-prolonging treatment is usually indexed only with EUTHANASIA, PASSIVE, unless the distinction between withholding and withdrawing treatment, or the issue of withholding palliative rather than curative treatment, is discussed.Legal Guardians: A legal concept for individuals who are designated to act on behalf of persons who are considered incapable of acting in their own behalf, e.g., minors and persons found to be not mentally competent.Mental Competency: The ability to understand the nature and effect of the act in which the individual is engaged. (From Black's Law Dictionary, 6th ed).Resuscitation Orders: Instructions issued by a physician pertaining to the institution, continuation, or withdrawal of life support measures. The concept includes policies, laws, statutes, decisions, guidelines, and discussions that may affect the issuance of such orders.Medication Adherence: Voluntary cooperation of the patient in taking drugs or medicine as prescribed. This includes timing, dosage, and frequency.Personal Autonomy: Self-directing freedom and especially moral independence. An ethical principle holds that the autonomy of persons ought to be respected. (Bioethics Thesaurus)Terminal Care: Medical and nursing care of patients in the terminal stage of an illness.Judicial Role: The kind of action or activity proper to the judiciary, particularly its responsibility for decision making.Patient Self-Determination Act: The purpose of this 1990 federal act is to assure that individuals receiving health care services will be given an opportunity to participate in and direct health care decisions affecting themselves. Under this act, hospitals, health care agencies, and health maintenance organizations are responsible for developing patient information for distribution. The information must include patients' rights, advance directives, living wills, ethics committees' consultation and education functions, limited medical treatment (support/comfort care only), mental health treatment, resuscitation, restraints, surrogate decision making and transfer of care. (from JCAHO, Lexicon, 1994)Right to Die: The right of the patient or the patient's representative to make decisions with regard to the patient's dying.