This manual aims to serve as a handy reference for postgraduate students and practitioners in clinical care and emergency medicine. Students will be able to use it for rapid review before appearing in examinations like Indian Diploma in Critical Care Medicine (IDCCM), Indian Fellowship in Critical Care Medicine (IFCCM), Post-BBS Certificate Course in Critical Care Medicine (CTCCM), Diplomate of National Board (DNB Emergency Medicine and DNB Critical Care), and various other courses in intensive/critical care and emergency medicine. Postgraduates in anaesthesiology and internal medicine will also find it useful for the critical care aspect of their practical examination.