Apparently, she has no more rights than an unborne child.
And, if some doctors had their way, she would have no more rights that a newborn child.
See this FR thread:
http://www.freerepublic.com/focus/f-news/1368709/posts
In it, you will see Michael De Georgia, MD, head of the neurology-neurosurgery intensive care unit at the Cleveland Clinic Foundation, advance the argument that people with pvs do not have consciousness, and that, as a result it is OK to starve them to death, because doing so causes them no pain or suffering. (Pain and suffering, says Dr. De Georgia, require consciousness).
The scary thing about what Dr. De Georgia argues is that he makes this statement: "For example, a patient in persistent vegetative state will grasp your hand. In fact if you put anything into the patient's hand, the hand will grasp it. But this is a very primitive reaction. A newborn baby will grasp your finger, but there is no consciousness."
Get it? If it's OK to starve people with PVS (because they feel no pain and do not suffer), it must also be OK to starve newborn babies who also lack consciousness (and therefore do not feel pain and do not suffer).
Ghastly.