Book excerpt: Updated annually with the latest developments in diagnosis and treatment recommendations, Ferri’s Clinical Advisor uses the popular "5 books in 1" format to organize vast amounts of information in a clinically relevant, user-friendly manner. This efficient, intuitive format provides quick access to answers on more than 900 common medical conditions, including diseases and disorders, differential diagnoses, and laboratory tests – all updated by experts in key clinical fields. Updated algorithms and current clinical practice guidelines help you keep pace with the speed of modern medicine. Contains significant updates throughout, with more than 500 new figures, tables, and boxes added to this new edition. Features 17 all-new topics including opioid overdose, obesity-Hypoventilation syndrome, acute pelvic pain in women, new-onset seizures, and eosinophilic esophagitis, among many others. Provides current ICD-10 insurance billing codes to help expedite insurance reimbursements. Includes cross-references, outlines, bullets, tables, boxes, and algorithms to help you navigate a wealth of clinical information. Offers access to exclusive online content: more than 90 additional topics; new algorithms, images, and tables; EBM boxes; patient teaching guides, color images, and more.