Mom refusing to go to doctor.

She has problems from hip surgery, also has fractured arm. She slight dementia and drinks, she can be normal or in the next minute threaten to kill you. She has fallen twice in the past 2 weeks and has been baker acted for pulling a gun on my sister. We still love her, but cannot do this anymore, im worried about her. I tried to be here for her, i left my family 3 times in the past 2 years to take care of her, only to be thrown out of her house. At the end of my rope. She is 80 years old, and has very limited mobility. She had hip surgery 3 years ago, and would not do therapy, so she can barely walk now. Will not use her portable potty, Ill leave it at that.

Is she refusing to go because she doesn't feel she needs to? You'll need to tell us a little more. How old is she and what is wrong?