Terminal illness is defined as illness from which recovery is not expected. The manner in which death is defined affects the ruling, hukm, about life support. The following are various definitions of death: (a) traditional: cardio-respiratory arrest (b) Whole-brain death (c) Higher brain death. If death is defined in the traditional way, life support cannot be withdrawn at any stage. If the definition of higher brain death is accepted, life support will be removed from persons who still have many life functions (like respiration, circulation, sensation). The question of quality of life is also raised in the definition of life. The assumption is that there must be some quality to human life for it to be worth living. The exact definition of quality is still elusive. It is argued that euthanasia saves the terminally ill from a painful and miserable death. This considers only those aspects of the death process that ordinary humans can perceive. We learn from the Qur'an that the death of non-believers is stressful in the spiritual sense. Believers can have a good death even if there is pain.
2.0 PALLIATIVE CARE
The aim of palliative care is good death which includes: pain control, psychological support, emotional support, and spiritual support. Death can be made a pleasant experience. Palliative care was traditionally in the family but it has recently moved to institutions. Lessons about palliative care can be learned from the terminal illness of the prophet and his companions. The Quran has taught the etiquette of caring for old parents.
3.0 PRINCIPLES OF CERTAINTY AND AUTONOMY
Since the definition of death and the exact time of its occurrence are still matters of dispute, a major irreversible decision like withdrawing life support cannot be taken. Islamic law strictly forbids action based on uncertainty, shakk.
4.0 THE PURPOSES OF LIFE AND WEALTH
The purpose of preserving life may contradict the purpose of preserving wealth. Life comes before wealth in order of priorities. This however applies to expenditure on ordinary medical procedures and not heroic ones of doubtful value because that would be waste of wealth, israaf, that has been condemned.
5.0 LEGAL RULINGS ON INITIATING and WITHDRAWING LIFE SUPPOR