My mom is 84 and we think will be "expelled" from rehab due to her lack of gains and cooperation. She has a broken pelvis and humerus and severe COPD. There is no way she can go home (apartment not set up for it due to location and angle of bathroom, etc. Plus she cannot walk 20' without having to stop to breathe and has to drag oxygen hose with her.This is how she fell. She is arguing that she wants to go home. We have power of attorney, but understand that if she is in sound mind she can decide to go home. Is that correct? What would happen in such an instance?