A physician decides to discontinue or not to use extraordinary life sustaining measures to prolong his patients life. It is known as?

Active euthanasia or positive euthanasia is a positive merciful act, to end useless suffering or a meaningless existence. It is an act of commission. Example: By giving large doses of drugs to hasten death. Passive euthanasia means discontinuing or not using extraordinary life sustaining measures to prolong life. This includes acts of omission. Example: Failure to resuscitate a terminally ill or hopelessly incapacitated patient. Assisted suicide: A person providing information to another with information, guidance and means to take his own life with the intention that it will be used for this purpose is assisted suicide. Ref: The Essentials of Forensic Medicine and Toxicology 29th Ed Page 42.