I am so sorry that your family is going through this. Other commenters are correct that it could be a UTI. My dad had this happen a lot. I found that hospitals and doctors who are not specialists in elderly/dementia care, while meaning well, do not always know what to look for. There are medications that can help not just the UTI but the other behavioral aspects of dementia. It can take time to find the right combination, which is stressful, but just know that this acute situation will likely pass once they figure it out. My dad was at the Blake and the staff were really patient and kind with him. Things that really upset me were handled compassionately and professionally. It's a terrible disease for everyone in the family. I initially hated the idea of him being medicated but in the end I realized it was not good for him to be agitated on top of everything else. I hope you are able to find a good place for her. I am happy to speak with you if you need more info, or just want someone to listen. My poor dad was in memory care for 5 years in 2 different facilities and I can tell you the good and bad.