Acute psychosis with attention-deficit/hyperactivity disorder and oppositional-defiant disorder comorbidities

This is a case of an 18-year-old boy who presented with his mother in the emergency room with a 1-week history of paranoia and bizarre behaviour. His comorbidities included attention-deficit/hyperactivity disorder, oppositional-defiant disorder and mild intellectual delay. At the emergency room he was incoherent, agitated and uncooperative. He was admitted to the psychiatric inpatient unit and treated with low-dose risperidone. The patient's …