I’m in a similar situation. My dad has had a series of strokes over the years, which have rendered him with something called vascular dementia. It’s very similar to Alzheimer’s disease. He is in the care of home Hospice now, which is palliative care. Palliative care is a good thing. Hospice has been very kind and understanding. Being in the hospital is nothing more than torture for your mom, because it certainly was for dad. Hospice has been right there with meds, and advice, for both the family and my dad. I would recommend that you take your mom home and let Hospice (a not-for-profit hospice, make sure you check) help. Spend your mom’s remaining days with her and let her go in peace. You won’t regret it.