In healthcare, an important treatment for patients with severe life-threatening conditions and injuries is provided by critical and intensive care units. A combination of close monitoring, constant care, life support using specialized equipment, and specific medications help to ensure health and normal bodily functions. Patients are generally treated for trauma, sepsis, multiple organ failure and acute respiratory distress syndrome. Patients who have undergone highly invasive surgical procedures and are at risk of complications, or patients with rapidly deteriorating health conditions are eligible for critical care. Dedicated nursing is integral to critical care. Performing assessment of critical conditions, operating and maintaining life support systems, providing intensive therapy and medications, ensuring adequate tissue and organ perfusion are crucial aspects of critical care nursing. This book brings forth some of the most innovative practices and elucidates the unexplored aspects of critical care. The various studies that are constantly contributing towards advancing technologies and evolution of this field are examined in detail. Those in search of information to further their knowledge will be greatly assisted by this book.