The hospital called adult protective services on my 72 year old mother. What do I do?

In September of last year my mother became very ill & was rushed to the ER. She was admitted and underwent two surgeries back to back. Well, two days apart. She had open inguinal hernia surgery due to obstruction and strangulation. They removed almost 7 inches of her small intestine. Two days later she was still not doing good, she went into kidney and respiratory failure and had some sort of infection going on. The only thing they could do was open her up. They found several small perforations & repaired them. She was in the hospital 13 days. I have been her caregiver since. We have always lived together, me, my 3 younger kids, my 24 year old daughter and her. My brother lives in another state (they have not had any type of relationship, prior to 2018 that had not spoken since 1995), & my other brother is deceased. So, it only made sense for me to be her caregiver. Since October, I have noticed that she is struggling with her memory & a lot of changes in her behavior. She will ask me questions repeatedly, she becomes fixated on things, like Facebook-saying people are on it and she doesn't know how they got on it, taking our dog out-despite the fact she will see me or one of the kids take her out, she tells us to do it every 5 minutes. Up until she lost her phone recently at the hospital, she would also fixate on texting her now ex boss & district manager, she would ask me repeatedly about pictures she text to them, saying they text them to her, and lastly her bank account. She was checking it so many times a day, I could not tell you how many times, but it was a lot. At one point she would get up locked out daily due to her not entering her password correctly. She would have me get on the phone with the bank & have them help reset the password. The last time I did it, with her right there, was about 4 days before she went back in the hospital this most recent time (Jan 27). They told her then that it could not be unlocked anymore, that she would have to come into a branch & show her ID, due to fraud prevention. I had to call 911 because she was acting, saying weird things & throwing up a lot. While in the hospital, she told the hospital social worker that I had removed her name off of her bank account, which is NOT true. She also told them that she worked the Sunday prior & that her job kept her wages & any tips she was owed, which was also NOT true. She has not worked since 09/21/2019. My mom prior to being is and always has been very vindictive & spiteful. I think she told them that because she got mad I could not get her password reset for her over the phone. She has had other delusions besides her thinking I did that & that she worked recently. The social worker at the hospital did not ask me, she accused me and was very hateful to me. I explained to her in front of my mom what happened & that she has not worked. My mom kicked me out of her hospital room. The social worker caught me in the hallway & demanded proof that those things were not true. I had to come home get, my moms LOA paperwork and call the bank on speaker phone for them to tell her that NO ONE has done anything or changed anything on my mom's account. She still called APS. They showed up 2/13, instead of my mom telling the truth that she had a delusion. She over talked me, as well as the APS lady. Finally, I got to explain to her what my mom did & how she told me to just get over it. My mom interjects & yells at me to stop bringing up the past, that I was not perfect. The lady from APS, told me to not argue w/her to let her be. My thing is this, what is going to happen now? My mom does not have a POA, she refuses to go get evaluated for dementia, she refuses to take care of herself, anytime I tell her it is time to do her treatment or time for her to exercise or inquire about her fluid intake so she doesn't get dehydrated, she tells me I am just trying to control her; that she will call APS on me if I don't leave her alone. What do I do?