Review Question - QID 109962

A 23-year-old woman presents to her psychiatrist concerned about her mood. She has felt tired and unwilling to engage in any activities lately. She states that her limbs feel heavy all the time and that completing any activity takes tremendous effort. She no longer finds any happiness in activities that she previously enjoyed. She struggles to sleep and at times can't sleep for several days. The patient is started on appropriate first-line therapy and sent home. She returns 1 week later stating that her symptoms have not improved. She is requesting help as her performance at work and school is suffering. Her temperature is 99.5°F (37.5°C), blood pressure is 115/72 mmHg, pulse is 60/min, respirations are 13/min, and oxygen saturation is 98% on room air. Which of the following is the most appropriate next step in management?