The nurse should discuss the situation and his or her concerns with the adult protective services because they are the ones who handle this type of situation and are specialist in dealing this situation. They will know what to do and give advices that are needed and to be used in concerned with the situation that the client is currently experiencing.
Sue is likely burning body protein for energy, if a diet does not contain adequate protein for your body to use as energy, it will burn your own muscle mass for energy