Behavioral disorders are related to those phenomena in behavior, variety of biological, psychological, educational and social genesis that go beyond the generally accepted norms of behavior of a particular community. Attention-deficit hyperactivity disorder (ADHD) is a psychiatric illness characterized by attention skills that are developmentally inappropriate and, in some cases, impulsivity and hyperactivity. ADHD can have long-term serious consequences without diagnosis and appropriate treatment. Treatment of ADHD is a multidisciplinary process that relies heavily on patient and family education regarding the etiology, symptoms, and pharmacologic and behavioral interventions. Nursing roles and responsibilities include assessment, planning, and implementation of interventions and ongoing evaluation of progress. The nurse also plays an important role in helping the client and family to develop new and more effective coping skills through social skills and parent training classes, and psychoeducation.