Book excerpt: This 2nd edition of the Practical Guide to Emergency Ultrasound addresses your need for a practical, comprehensive, how-to book on ultrasound techniques in the emergency department, including new and expanded applications. Organized in an easy-to-navigate problem-based and symptom-based approach, chapters cover many uses for ultrasound in the ED and proper ultrasound technique. Over 900 images, many in full color, illustrate key concepts and diagnoses, including the use of echocardiography in the ED and newer applications for imaging ocular, musculoskeletal injuries and the use of ultrasound in the management of undifferentiated hypotension and dyspnea.