If Alzheimer's patient is "fine" but their family caretaker is not feeding them is this elder abuse? What exactly can be done?

I'm writing as a third party. My aunt works for a home healtcare company she has been working at the same patients home for 7 years. Progressively over the 7 years her health has declined due to her disease. Her daughter that lives in the home with her and also cares for her has always had attention seeking behavior. For example when hospice nurses would come she would say her mother was doing things that she wasn't and that she was in so much pain however she would be fine in a good mood good with names and everything. It became concerning to my aunt during this time because none of that was true. Well a few days ago the daughter was stating to my aunt that she will only eat for my aunt but that's also because she sat there patiently and would help her to eat she's still drinking fine as well. This evening my aunt was told that the daughter spoke to the doctor told the doctor her mother no longer was swallowing which again wasn't true. So my aunt is being told to only give her medications (orally because they are thicker supposedly the doctor said) and keep her comfortable but not to feed her or give her anything to drink. Obviously it breaks her heart but she also feels conflicted inside knowing she's being told to sit and watch someone literally starve to death and knowing that she is still able to eat and drink. I have all the respect in the world to anyone that is in that profession and all families that take care of their loved ones with this awful disease I can't possibly begin to imagine. So I guess what my question is, is the daughter "allowed" to do that is this even something you can report if so how and to whom. It breaks my heart even thinking about it. Thanks in advance for the answers I really appreciate it!!