With major advances in technology there are thousands of clinical and laboratory tests available, forming a key part of the diagnostic process in the highly complex field of modern medicine. This handbook provides a patient-orientated approach to investigation, with a comprehensive review of specialty-related tests. Written in the Oxford Handbook style, this book features references and up-to-date website links for extra clinical detail.This new edition has been revised to include the most recent developments in investigatory tests, with clear step-by-step instructions and updated illustrations to provide greater clarifying background to the text. Written by an experienced team of active clinicians, this is invaluable for junior doctors as a quick reference, as well as senior medical students preparing for examinations.