I got the POA papers from the hospital, had them signed by witnesses and my sister designating me as having the Medical Power of Attorney.
It took about fifteen minutes.
The POA was all I ever needed during the hospital stay.
Before she was released, I got the General Power of Attorney which gave me control over all of her business.
It served the same purpose as a guardianship.
I would skip the guardianship idea and have an attorney draw up the General POA. This cost me about $200.
I don't know what is going on, but I know hospitals can be very obstinate. They sometimes get the idea that they can control you.
If she is responding to questions in a lucid manner, they have no right to declare her mentally incompetent.
This may be the time when you need an attorney, or at least the threat of a lawsuit.
This is sounding more and more like another Terri Shiavo scenario.