This is the first book in a series that serves the dual purpose of preparing students of CLS programmes for certification exams and giving cross-training skills to established clinical lab scientists who now find themselves called on to work in other areas of the lab. It uses a building block approach to convey the material in a logical fashion. Starting with an overview of medicine and the medical laboratory’s relationship, it proceeds to the diagnostic value of those analytes normally associated with clinical chemistry, on to technologies of analysis, quality assurance, and statistical analysis of laboratory data.