In Thor v. Superior Court (1993) 5 Cal.4th 725, a physician sought a court order allowing him to use a feeding tube on a patient, despite the patient's refusal to consent to the procedure. ( Id. at p. 733.) The court concluded: "A competent, informed adult, in the exercise of self-determination and control of bodily integrity, has the right to direct the withholding or withdrawal of life-sustaining medical treatment, even at the risk of death . . . ." ( Id. at p. 744.) Applying the law to the facts in Thor, the court stated: "The patient has refused to consent to the administration of nutrition or medication to him by means of a feeding tube. The parties agree that he is competent to make this decision and is aware of its consequences. . . . We find no duty on the part of . . . his physician to provide further life-sustaining procedures and therefore decline to authorize him to take any action inconsistent with or contrary to the patient's express choice regarding the course of his medical treatment." ( Id. at p. 749.)