As a practicing neurosurgeon, chief medical correspondent Dr. Sanjay Gupta has been there. His family has grappled with moments just like this one.
Sanjay, so she's left the hospital. It sounds like she's going to end up in this long-term care facility. What's her prognosis at this point?
DR. SANJAY GUPTA, CNN CHIEF MEDICAL CORRESPONDENT: Well, you know, her prognosis is she has been declared brain dead and, you know, that's an irreversible condition. So there's really nothing to be said about prognosis or any of the other interventions that may take place in terms of affecting her prognosis.
That's a -- it's a tough thing to hear, it's a tough thing to say, frankly. But that's the truth when it comes to brain death, we are talking about death. This is just another term for it.
COOPER: Is -- I mean, is brain death different than a persistent vegetative state or being in a coma?
GUPTA: It is. And I know you've done some reporting on this as well, Anderson. People who have come -- who've seemingly recovered from deep comas.
COOPER: Right.
GUPTA: This is different. And terms matter here. People can be in a coma and still have brain activity. They can be in a persistent vegetative state and still have brain activity. With brain death, there is no brain activity. The higher brain functions as well as the lower brain functions which control your reflexes in terms of breathing, controlling your heart rate, all these sort of basic functions of the body.
That part is not working anymore. The only way that you have any of those functions at all is artificially through these machines.
COOPER: Her family, though, is saying that she responds to touch. Is that -- is that possible with somebody who's been pronounced brain dead?
GUPTA: Well, people can have movements that are more reflexive and more as a result of activity in the spinal cord as opposed to the brain. They're sometimes called myoclonic activity which can sort of the jerking type movements. And again none of this is easy to talk about and, you know, I've had these conversations with families. The person who is brain dead, obviously, is experiencing nothing.
So it's not in response to touch. Could it be coincidental in some way? Perhaps. But, you know, oftentimes as you might expect, families see what they want to see, and that may be what's happening here as well.