She may be "stable" but that means nothing.
She was down for almost 30 minutes before ROSC. That is very, very bad. I've seen similar clinical courses- I'll be really, really surprised if she wakes up (and even more surprised if she has meaningful cognitive function). Or if she's not brain dead- which they won't know for a few days yet because of the criteria.
I hope I'm wrong- but we were discussing this at dinner last night and some of the family friends are ICU nurses (who know that clinical stuff more than me)- they are not terribly optimistic.