If the toe is bleeding, that indicates at least some degree of blood circulation, which would lead me to believe it's not totally dead at this pointIf you're considering amputating the dead bits of toe (which may be a good idea), I'd start first by seeing if she has any sensation at all in those areas. Get a (sterilized via heat or alcohol) needle and poke the black areas. If she doesn't respond to a prick, try deeper. If she doesn't respond to it at all, those areas are definitely dead and should probably be removed, careful not to cut into the fleshy bits. They'll probably fall off on their own anyway, but if they're definitely dead and have no sensation, removing them would probably be good.