Clinical Chemistry is a comprehensive textbook covering the area of medical science variously known as chemical pathology, clinical chemistry, medical biochemistry and clinical biochemistry. The biochemical processes and physiological interrelationships, of tissues, organs and molecules are discussed in the context of disease processes and related to the diagnosis, monitoring, and management of disease. Also included are analytical processes, such as immunoassay, and how these relate to clinical practice. Although the emphasis of this book is clinical biochemistry, some chapters include sections on haematology, radiology and microbiology where this helps in the understanding of disease processes. The increasing use of the techniques of molecular biology and genetics in the investigation of disease is acknowledged also by appropriate inclusion of these disciplines in a number of chapters. Standard International (SI) units of measurement are used throughout, but for tests where non-SI units are in common use as well as SI units both sets of units are quoted.