This new edition of a must-have manual, edited by Elizabeth Villiers, Jelena Ristic and Laura Blackwood, features new case studies and updated images. There is an increased focus on principles, testing and interpreting results as well as sampling, genetic testing and diagnosing genetic and inherited diseases. This new edition of a must-have manual, edited by Elizabeth Villiers, Jelena Ristic and Laura Blackwood, features new case studies and updated images. There is an increased focus on principles, testing and interpreting results as well as sampling, genetic testing and diagnosing genetic and inherited diseases. Fully revised and expanded, this manual contains not just advice for the busy practitioner, but also for the concerned owner and how they can play a part in the treatment of their pet. In-house versus external testing Quality assurance and interpretation of laboratory data Introduction to haematology Disorders of erythrocytes Disorders of leucocytes Disorders of haemostasis Disorders of plasma proteins Electrolyte imbalances Blood gas analysis and acid--base disorders Urine analysis Renal disorders Laboratory evaluation of hepatic disease Laboratory testing in GI disease Laboratory evaluation of exocrine pancreatic disease Laboratory evaluation of lipid disorders Laboratory evaluation of hyperglycaemia and hypoglycaemia Laboratory evaluation of hypothyroidism and hyperthyroidism Laboratory diagnosis of adrenal diseases Laboratory evaluation of the reproductive system Laboratory investigation of cardiac disease Diagnostic cytology Body cavity effusions Lab evaluation of joint disease Laboratory evaluation of muscle disease Laboratory evaluation of cerebrospinal fluid Laboratory evaluation of skin and ear disease Diagnosis of bacterial, fungal and mycobacterial diseases Diagnosis of viral infections Diagnosis of protozoal and arthropod-borne disease Diagnosis of inherited disease Appendices