The document discusses patient safety in healthcare. It provides definitions of patient safety and discusses some key facts: - An estimated 134 million adverse events worldwide result in 2.6 million deaths annually, especially in low- and middle-income countries. Medical errors are among the most common adverse events. - Investments in patient safety can improve outcomes and save costs by preventing unnecessary harm and treatment expenditures. - Common adverse events include medication errors, healthcare-associated infections, surgical complications, diagnostic errors, and radiation errors. - Patient safety is enhanced through risk management, which identifies risks, analyzes their causes and impacts, evaluates their severity, and develops treatment plans to control, transfer, or avoid risks.