Frank and Sarah face difficult ethical and legal decisions regarding their mother Ann's care. Ann has advanced Alzheimer's disease and is no longer able to make her own medical decisions. She contracted pneumonia and is refusing to eat. The doctor recommends inserting a feeding tube but Frank and Sarah are unsure if this prolongs suffering or is in line with Ann's previous wishes. As a nurse, they would advise Frank and Sarah to consider Ann's prior expressions of her end of life values and preferences. If unknown, they should decide what is in her best interests based on her current quality of life. Legal obligations require providing medically indicated treatment but not prolonging dying. They must find the option that honors Ann while avoiding unlawful harm or neglect.