Jessica is 15 years old and is seen with her concerned mother at the GP surgery. She describes feeling low for the last 2 months and has had some fleeting suicidal thoughts. She strongly denies any suicidal plans or intent and feels well supported at home. Her upcoming exams are one source of stress although she admits feeling sad and tired in the school holidays also. She is not sleeping well and has a reduced appetite.
What is the most appropriate next step in her management?