This manual is a step-by-step guide providing a concise and highly formatted approach to differential diagnosis for common paediatric problems. Organized by systems, this 'how to' book focuses on the analysis of presenting signs and symptoms, history, physical examination, and the appropriate use of laboratory and radiologic studies to reach a definitive diagnosis. This edition includes new diagnostic techniques that reflect a more precise understanding of the pathophysiology of diseases. Plus eight new chapters and extensive patient instruction sheets to assist in explaining common problems.