A survey was conducted by means of a questionnaire to assess elderly patients' perception of cardiopulmonary resuscitation (CPR) as it might be applied to themselves. Nearly half (47%) of patients were unaware of the existence and practice of this procedure. The majority of patients felt that selective application of CPR in the elderly was appropriate. Factors that may influence selection are discussed. A considerable proportion of patients wished to be resuscitated if the need arose--a fact not in keeping with the scant information available on the subject. Significantly more men than women favoured resuscitation. Some elderly people interviewed, favoured resuscitation of elderly patients other than themselves. Patients welcomed an opportunity to discuss and express their views on their position.