-Dr. Cheryl Zauderer, PhD, CNM, PMHNP-BC Associate Dean of Graduate Programs Co-Coordinator, PMHNP Program Hunter-Bellevue School of Nursing Now in its third edition, this revised reference continues to serve as the only foundational resource for APRNs to incorporate a focus on integrative interventions with mental health issues across the lifespan. New chapters on Legal and Ethical Decision Making and LGBTQ+ Issues: Care of Sexual and Gender Minority Patients, and Increasing Resilience in Advanced Practice Mental Health Nurses, shed light on vital contemporary issues. This text offers expanded coverage on telehealth, population health, and the updated AACN Essentials. Additionally, the third edition provides 10 practical case studies illustrating specific syndromes as well as 2019 updates to the ANCC certification exam. It provides expanded instructor resources including a Test Bank and PowerPoints. Comprehensive and practical, this text is organized around commonly seen clinical constellations of psychiatric symptoms and covers neurobiology, theory, and research evidence along with pharmacological information relevant to each syndrome. It delivers an abundance of valuable interventions from which clinicians and clients can co-create the most effective, individualized interventions. Popular decision trees provide an algorithm to help students work through the process of evaluating and treating patients, and a lifespan focus prepares students for treating patients in all age groups. New to the Third Edition: Key Features: