Thank you all so much for the prayers.
I talked with my mom on the phone a couple of hours ago. Last she heard is that Lena is conscious, ate "two spoons of something," and even uttered several words.
A person from the intense care team said that if things go well, tomorrow they will, maybe, try to transport her to a bigger hospital.
Lena is (was?) a theatre and movie actress. Right now, it's not clear whether she will live, and if she will, it is not clear whether she will even walk. But... who knows. I am praying for Lena's life and healing. Lord, Thy will be done.