In a strictly medical sense,she was not "brain dead".
If she had,her vital autonomous functions,such as breathing,movement,involuntary eye movements,etc. would not have been occurring.
Here is the definition of "brain death" as used by medical students and as taught in ALL medical schools...
http://www.medstudents.com.br/neuro/neuro5.htm
"Criteria For Diagnosis of Brain Death
In 1981, the President's Commission for the Study of Ethical Problems in Medicine and Biomedical and Behavioral Research (USA) developed standards for the determination of brain death which with some modifications are accepted worlwide.
Some steps are imortant to be followed:
Unresponsiveness
The patient is completely unresponsive to external visual, auditory, and tactile stimuli and is incapable of communication in any manner.
Absence of cerebral and brain stem function
Pupillary responses are absent, and eye movements cannot be elicited by the vestibulo-ocular reflex or by irrigating the ears with cold water.
The corneal and gag reflex are absent, and there is no facial or tongue movement.
The limbs are flaccid, and there is no movement, although primitive withdrawal movements in response to local painful stimuli, mediated at a spinal cord level, can occur."
So,according to the accepted definition,she was NOT "brain dead".
The argument that she was in no pain and had no feeling or even self awareness might hold true,however.