A 14-year-old patient recently released from juvenile detention is brought to the emergency department by police for assessment of aggressive behavior. Parents called the police after the teen started yelling, cursing, throwing things and hitting one of the parents. The teen has had behavior problems since early elementary school, but no psychiatric or medical history. In addition to diagnosing the behavior problem,which of
the following is the most appropriate initial step for the psychiatrist to take?

A. Evaluate the patient for additional psychopathology
B. Neuroimaging and hormonal screening of the patient
C. Neurological and physical examination of the patient
D. Documentation of patient's criminal history
E. Clarification of the patient's guardianship