This book is a complete guide to the use of ultrasound in critical care. Beginning with an overview of ultrasound and its applications, the next chapters discuss basic physics of ultrasound, modes of ultrasonography, and Doppler imaging. The following sections cover the use of ultrasound in different critical care situations including for vascular access, in acute respiratory distress syndrome, for cardiac evaluation, in neurocritical care, in the ICU, and more. The book concludes with clinical case scenarios and guidance on infection control and legal issues in ICU sonography. The comprehensive text is further enhanced by more than 300 ultrasound images, figures and tables to assist learning.