Because that was what she wanted. As would I. And, if you are honest, as would you. She was displayed for years as a foolish debilitated creature, lower than a monkey or a dog or a cat. She never, ever wanted that. Nor would any of us. If you weren't so wrapped up in ideology, you would admit that for yourself. No one -- no one -- would want to live that way.
In that case we can dispense with the charade of "finding the patient's wishes," either in some written document or testimonial evidence. Just schedule a dignified natural death by dehydration based on suitable professional evidence of substandard physical and mental condition.
Please, since you profess to mind read for Terri, tell me what ideology I am wrapped up in? Is it... I won't kill my patients? Or do you just want to turn all of Nursing and Medicine into Euthanasia teams.
No thanks, I'm glad I'm retired.