I'm so sorry you all are going through this. My brother & I took on the care of my father when dementia slowly started to erode his health. In the end, he knew he had a daughter who was a nurse, but he kept insisting my name was Dorothy. We were able to get him into a skilled nursing facility after he had a stroke and he passed quietly there. Nothing about caring for a parent is easy. On any level. I wish you all peace in this tortured journey.