This document discusses attention deficit hyperactivity disorder (ADHD). It defines ADHD as a neurodevelopmental disorder characterized by inattention, hyperactivity, and impulsivity. The document covers the causes, symptoms, diagnostic criteria, treatment options, and nursing role for patients with ADHD. Treatment involves behavioral therapy, environmental modifications, classroom accommodations, and may include stimulant medications to manage symptoms. A multimodal treatment approach involving patients, families, and medical professionals can help improve outcomes for those with ADHD.