Questions raised by artificial prolongation of life of the aged patient.

The existence of treatments which now make it possible to prolong life beyond the point when it would previously have ended, gives rise to particular questions in the context of the care of aged patients: the distinction between curative and palliative treatment, the evaluation of incurability, the right to refuse treatment, competence to make such a decision and the use of the limited objective and pure objective tests in the event of incompetence. The natural role of the physician as protector adds a further ethical dimension to what is also a medicolegal question.