I'm so sorry that you and SIL are being subject to this. The stuff that happens in hospitals is fodder for Alfred Hitchcock nightmares. It makes one paranoid if you think about it too much.
Sorry your family is having to deal with this, G. Unfortunately we all have to be our own advocates when it comes to medical care these days. At least your poor brother has someone to be there for him.
That is for sure, and it is important to have that living will, or at least have discussed things with your family, so they know what to do if you become unable to make those decisions. With our Humana insurance, they offered something called “My directives”, and it was free, so I filled it all out and shared it with my family, and have a copy on my phone and on the ipad, so if something happens, they know what I want, or have authority to make the best decision. I definitely recommend doing something like this. We are keeping your family in our prayers, @Hedi Mitchell , and I know that this has to be such a hard thing to be going through, and not even be able to be close enough to see your brother.