Usually she is a blessing but with her UTI she tries to hit, kick, pinch and scratch me. The has tried to stab me with a fork and a knife. I know it is the dementia and the UTI but should I document this in some way? I've had to call the police twice and each time she calls me the devil and tells how mean II am, telling them that I have killed her, I've folded her. Should I document in some way her assaults on me?
Today, you can never be too careful in protecting yourself.
My mother began having recurrent UTIs last year. What her doctor did was put her on Bactrim to be taken three times a week to try to keep the infections at bay. I also started giving her cranberry capsules to help to acidify her urine. If your mother is having recurrent infections, her doctor may consider a preventative treatment.
About documenting the assaults -- you can keep a journal with everything that is happening. I would mainly use the information to let me know what I need to do to make things better.