S.B.
Contact a social worker at the hospital she is currently in.
I work at a hospital and have worked at a skilled nursing facility. There are people who can help you understand how things work and help you fascilitate things.
I wish you the best as these things can be so difficult when you are far away from loved ones, but things can be worked out.
You need advice from someone who has more information about your mother in law's specific situation.
I wish you the very best.