Review Question - QID 212644

A 31-year-old woman is brought to the emergency department by EMS, activated by a bystander who found her wandering in the street. She provides short, vague answers to interview questions and frequently stops mid-sentence and stares at an empty corner of the room, appearing distracted. Her affect is odd but euthymic. Past medical history is notable for obesity and pre-diabetes. Collateral information from her brother reveals that she left home 3 days ago because she thought her family was poisoning her and has since been listed as a missing person. He also describes a progressive 2-year decline in her social interactions and self-care. The patient has no history of substance use and has never been prescribed psychiatric medications before but is amenable to starting a medication now. Which of the following would be the most appropriate as a first line medication for her?