Out of Body For Weeks After NDE

This woman died from injuries in a car accident at the age of 17 . Nothing special here. Except that she frequently traveled out of her body after her near death experience. And although she was severely injured requiring physical therapy and rehabilitation – she was also unaware of these injuries. At the time, she believed her physical body was fine. This makes me wonder, do others who are this severely injured, have the same type of  awareness? How can a person appear comatose and yet be fully aware of their surroundings and even travel out of their body while in a coma? Should this reality change the way we interact with people who appear to be unresponsive?