Review Question - QID 109018

A 25-year-old man presents to his primary care physician with anxiety and fatigue. During this past week, he has been unable to properly study and prepare for final exams because he is exhausted. He has been going to bed early but is unable to get a good night’s sleep. He admits to occasional cocaine and marijuana use. Otherwise, the patient has no significant medical history and is not taking any medications. His temperature is 98.6°F (37°C), blood pressure is 115/71 mmHg, pulse is 72/min, and respirations are 12/min. On physical exam, the patient is a tired and anxious appearing young man. His neurological exam is within normal limits. The patient states that he fears he will fail his courses if he does not come up with a solution. Which of the following is the most appropriate initial step in management?