The lady I take care went to inpatient rehab recently for her decubitus ulcers. Good things that happened were we got a hospital bed for her at home and a new home care company. Bad things: When she went in, she was frail, but lucid most of the time, had a sense of humor, could feed herself, and we had made progresson the contractures in her legs. She came home dehydrated and nearly catatonic, the leg contractures were worse, with new ones starting in her arms, and she's unable to feed herself or drink water by herself. We literally have to feed her with an eyedropper. What did those people do to her?
I hope you can find a sympathetic physician who will go over things with daughter and fully address the possibility of anything reversible, in a compassionate way.
I'll keep my fingers crossed for her, all the same! And your roommate is a lucky person to have a staunch friend like you with her in this.
You can also do some research through a local ombudsperson (individual or agency) and learn more about this facility. Some of the bad ones are well known.
Is she getting any home care nursing or physical therapy? This would the ideal situation, especially since the home care company would receive limited care information (which should include meds) that could shed some light on what happened.
If the prior facility won't script for home care, ask one of her physicians. This lady needs some help.