Thanks so much for commenting. Surely all anyone can expect is for nature to take it's course:-( Our kids have read this email and are being more proactive with their Grandmother which is a big help. Hope you stay well!
Don't let the doctors lack of concern control whether you believe she is bad off, or not.
Last week I went to see a cardiologist who told me I was in danger of sudden death and needed an ICD. Then, the same doctor, in the next breath told me, she could do the operation next week, or I could put it off for now, if I wanted to, that it was up to me. She didn't seemed concerned about my plight. She simply offered her services and then left it up to me to decide. So, I'm sitting there in her office thinking that if I don't have it done, I may be dead by next week, and she doesn't really care. My point is, doctors do what they think they should, and then let nature take it's course. If what they do works, fine, and if it doesn't, oh well.
And.......at 90 years old, they are even less likely to worry about whether a patient lives or dies. I know that's a harsh thing to say, but it's true.
My advice is to treat your mother in law as though everyday is her last. Tell her daughters what you have written here, and then it's on their shoulders to do what they feel them must. Keep in mind that she has already outlived the majority of people in their senior years, and be thankful for it.
I hope the best for her and all of her family.