Who has the right to cut off life support?

My aunt is in the hospital, she was in ICU for 2 days. She has had a massive heart attack. She is also a 76 year survivor of cerebral pasley. My uncle (her husband) is not all there and her son has just now come back into her life, since she was hospitalized. The other day they (uncle and son) decided to have her taken off of her IV and oxygen. Well they told us that she won't live. Her vitals and heart rate is good and she has now been living for 3 days on her own. I don't think that they should starve her to death especially since all of her vitals are good and she can hear us talking and she looks at us and tries to talk back. What my question is, is do her brothers and sister have any say in weather she gets her IV and oxygen back?

In response to Mylo.
The doctors said that she is going to die because her heart is badly damaged. In my opinion I think that if she is going to die because of a heart condition, that is fine, but the problem that I am having is that her vitals are all good, and they are just starving her to death. So she is not really dying from a heart condition, she is dying of starvation.

What an awful situation. It must be very difficult for you.

You mentioned that she "tries to talk back". How about having hospital personnel present, and attempt to get her to communicate an affirmative response to getting the oxygen back on? Perhaps a blink-once-for-yes, twice-for-no type scenario. If this woman is lucid, she should (legally) be able to participate in her own treatment.

Hang in there,
~M~

it really all depends on who the power of attorney is. This is going to sounds harsh but what quality of life does she really have...and is it fair to her to have to suffer with her having a massive heart attack...she will be prone to having more if she's already had one. By the sounds of it she's not suffering, and taking her off the IV and O2 might be a good thing for her. She's 76 and it might just be her way of saying I give up. I would rather see someone pass then someone who doesn't have a good quality of life.

its usually the one thats in the living will and the power of attorney has the right to do so. so you all need to figure that out and see whats best for your aunt. i hope your aunt gets better and god bless her

Sounds like a problem, but not really.
Anyone can protest to the hospital about this, and with all due right.
Talk to the pastor or priest of your denomination and explain what you do here. Every hospital has a Ethics Commitee and the pastor can take it there.
At least than can start it.

Tell your aunt to give you a signal (one blink for yes, two for no, that sort of thing). Then have some hospital personnel around. Then ask your aunt if she wants to live or not. If yes, put her back on life support. If not, cut her off. It is all up to your aunt. I heard this story on the news once about this lady who became comatose. The doctors took her off of her feeding tube. She can sort of speak. She said, "I want to live." But, it came out like this, "I...waa...oo...live." The doctors didn't listen, and she died later.