"Euthanasia" is often used to refer to all of the forms of hastened death:*Physician assisted dying - a physician provides a competent, terminally ill patient with a prescription for a lethal dose of medication*Mercy killing - an individual, usually a close relative or friend, ends the life of another who is suffering*"Self deliverance" - a terminally ill individual ends his or her own life without the prescription of a lethal dose of medication*Voluntary euthanasia - a physician responds to a terminally ill patient's request for a hasten death by ADMINISTERING a lethal dose of medication to the patient*Involuntary euthanasia - a physician administers a lethal dose of medication to a patient, without an explicit request from the patient*Passive euthanasia - a patient's death is hastened by the removal or withholding of treatments or life support*Active euthanasia - a patient's death is hastened by treatments given or administered to the patient