Unit 2 Principles and Concepts of Mental Health Nursing Comprehensive Mental Health Nursing Terminology 1. Mental Disorders & Related Terminology Understanding mental disorders is essential for nurses working in psychiatric settings. Below are key disorders with definitions, features, and examples. Psychotic Disorders Mood Disorders Anxiety Disorders Obsessive-Compulsive and Related Disorders Trauma-Related Disorders Dissociative Disorders Somatic Symptom & Related Disorders Personality Disorders 2. Symptoms & Related Terminology Recognizing symptoms is essential