On the day of the procedure, one of her sisters observed movement, and a doctor asked Ms Gallegos to blink, which she did, indicating she was still alive.
source https://www.ndtv.com/world-news/us-woman-wakes-up-from-coma-moments-before-organ-donation-surgery-9033966#publisher=newsstand
source https://www.ndtv.com/world-news/us-woman-wakes-up-from-coma-moments-before-organ-donation-surgery-9033966#publisher=newsstand