Anaesthetists and intensivists must master key basic sciences-including physics, clinical measurement, and equipment-to succeed in UK and international examinations. These topics can challenge residents whose backgrounds are predominantly clinical, especially when prior knowledge of mathematics or physics has not been used for years.Drawing on extensive clinical, engineering, and teaching expertise, the authors present a clear and structured guide to these essential principles in 31 focused chapters. The book is organised into three sections: basic scientific foundations, clinical measurement, and equipment.Fully aligned with the RCoA and FICM curricula, this comprehensive yet accessible, third edition is an ideal resource for residents preparing for the Primary and Final FRCA examinations and the FFICM Final examination.