The second edition has 28 chapters and 668 MCQs related to critical care medicine. New 300 + MCQs have been added along with few new sections like imaging, pharma therapy, etc. Theory paper of 50 questions has been added for practice purpose at the end of book. Contributors from respective areas have been selected who are experts in the field from all over India. Emphasis has been attributed to tropical diseases, respiratory system, hemodynamic, sepsis, infection control, neurocritical care, trauma and mechanical ventilation. The answers have been given for MCQs along with explanations at the end of every chapter. This book will surely meets the expectations of the students as it answers the queries in their mind. The contents have been so designed as to include the maximum syllabus of critical care medicine training courses.