This book functions as a practical guide for health care professionals encountering medical emergencies during a commercial flight. A second edition to its successful predecessor, this text covers the most common emergencies encountered during flight, both general medical emergencies and those specifically tied to the effects of flying, including cardiac, respiratory, and neurological issues. Medicolegal issues are considered in depth for both United States domestic and international flights, as there is potential legal risk involved in giving medical assistance on a flight. This new edition includes expanded and updated original chapters revised based on available new research material. Additional chapters examine how to handle disruptive passengers experiencing acute behavioral issues during flight, emerging infectious diseases. This issue is particularly relevant due to COVID-19, specifically concerning the anxiety and readjustment challenges of resuming everydaytravel. This edition includes a new chapter recounting the history of the handling of in-flight medical events. In-Flight Medical Emergencies, 2nd ed functions as an essential resource for physicians and all healthcare professionals who travel regularly.