My mother was recently admitted and was in the ICU...

My mother was recently admitted and was in the ICU for almost a week. She was on a ventilator during that time and completely sedated. After the ventilator was removed and she woke up she was still very confused and unable to hear anything. Just after two days of the vent being removed they moved her to a medical floor, which is to be expected. But after only being on the medical floor for less than 24hrs she was discharged home, still confused and unable to hear. I had called the nurse taking care of her because the nurse and my mom had called my 12 year old daughter telling her that my mom needed to be picked up, my daughter was confused and worried so I called to verify that she was really being sent home. The nurse seemed extremely rushed and told me she was discharged and was going to walk home if no one came to get her. I live 45mins away and asked the nurse to try to tell my mom that it would be a little while before I could get there but not to walk, the nurse said it s pointl trying to talk to her she won t understand, she cannot hear anything to which I said so why is she being discharged home, she then said she just walked down to the lobby and hung up. My father left work which is closer to go get my mom and when he got there she was sitting alone in the lobby of the hospital! I worked as a tech for 7 years and we were never allowed to let a patient walk out or leave them sitting alone in the lobby, it shows no compassion. And for someone who had no hearing or who was confused to be left alone like that with no phone or anything is ridiculous. What if she would have walked away from the hospital and gotten hurt?? Or lost? I do not understand their reasoning for letting her go. Then she was sent home with no antibiotics for her pneumonia. I m very concerned about the negligent of this hospital.