<human>: Give me a shortened version of the text

This is in Florida. 

For the past few years, we've been worried that my father's mother hasn't been "right" in the head. My parents are doctors and have been suspecting that she's been developing Alzheimer's. She currently lives alone. 

A year ago, my grandmother wanted to go to a retirement home, but was denied because she makes under $20,000/year on social security. That's when she started getting extremely paranoid about her financials and refused to let my father see them. When they were touring homes, she even laughed about how she accidentally put her keys in the freezer. What if she had put them in the microwave? She could have gotten herself killed! She was in a car accident a few years ago for accidentally flooring the gas instead of hitting the brake while parking. Last fall, she went on a bender insisting that my parents were getting divorced because my mother missed a family dinner to visit me up in college. Even some of her doctors have suggested taking a memory test, but she gets offended, refuses to listen, and changes doctors each time. 

Some of her issues include paranoia, false memories, confusion, and forgetfulness. She clearly needs help. The problem is, she's refusing help. She finally agreed to an appointment at a memory clinic. However, now she's taken my parents and I off the visitors list in her community so we can't get in, has not been answering her phone, and actually got a new will that specifies EVERYTHING goes to my older sister (lying, money hungry bitch who stopped speaking to my parents because they wouldn't keep sending her money after she turned 25). 

I told my parents to give her an ultimatum of either get help or lose her relationship with all of us. It's obviously very hard on my father. Are there any other legal options that my parents could try that would allow them to get her tested and potentially treated against her will since she does seem to be a danger to herself/others?
<bot>: grandmother may have Alzheimer's but refuses to get tested. Is now avoiding my parents. Legal options to make her get tested/treated since she's a risk to herself/others?