This critical care medicine book deals with acute patients in critical conditions, intended for those who, in their activity, need a continuous and in-depth interdisciplinary approach to optimize the quality of the treatments offered to critically ill patients. It offers an understanding of the limits of human intervention and aims at supplying updated guidelines; in particular, it is intended for those who, although having to guarantee continuity and top-quality therapies, must decide when and why the collaboration with, and intervention by, experts is necessary.