The subspecialty of pediatric care of the critical patient in an intensive care unit forms most significant skills of pediatric disorders, This IAP specialty series book uses a problem based approach to help the practicing pediatricians and postgraduate students to learn pathophysiology, diagnosis and treatment to interact effectively with pediatric patients around a variety of health issues and their care. The new growth in neonatology and the narrowing gap between the developed and developing world has necessitated to train the upcoming pediatricians with the latest technology in health care. This book covers all the aspects of critical care units with most standardized techniques and methods to be understood by students. Even in a rural background the pediatrician would benefit from this book to make arrangements for critical care as this book provides most comprehensive knowledge. It has the stamp of recognition from the Nation Board that it serves the intersivists in every manner.