Book excerpt: Clinical Guidelines for Advanced Practice Nursing: An Interdisciplinary Approach, Third Edition is an accessible and practical reference designed to help nurses and students with daily clinical decision making. Written in collaboration with certified nurse midwives, clinical nurse specialists, nurse practitioners, nutritionists, pharmacists, and physicians, it fosters a team approach to health care. Divided into four areas—Pediatrics, Gynecology, Obstetrics, and, Adult General Medicine—and following a lifespan approach, it utilizes the S-O-A-P (Subjective-Objective-Assessment-Plan) format. Additionally, the authors explore complex chronic disease management, health promotion across the lifespan, and professional and legal issues such as reimbursement, billing, and the legal scope of practice. The Third Edition has a keen focus on gerontology to accommodate the AGNP specialty and to better assist the student or clinician in caring for the aging population. The authors follow the across the life span approach and focus on common complete disorders. Certain chapters have been revised and new chapters have been added which include:Health Maintenance for Older Adults; Frailty; Common Gerontology Syndromes; Cancer Survivorship; Lipid Disorders; Acne (pediatrics section). Please note that the 2016 CDC Guidelines for prescribing opioids for chronic pain in the United States were not yet available at the time the authors were updating the Third Edition. See the Instructor Resources tab to read a note from the authors about their recommendations for resources around these guidelines.