Psychiatrymiddle twist
A 16-year-old boy is brought to the emergency department by police after he held a kitchen knife towards his mother during an argument about his phone. He is now calm, apologetic and cooperative, is not intoxicated, and describes no unusual beliefs or experiences. His mother says it was 'just a fight', wants to take him home tonight, and mentions that his 8-year-old sister was in the kitchen at the time. Which one of the following should be undertaken first?