Haematological analysis is one of the most widely used diagnostic tests in small animal veterinary clinics and forms part of most working protocols. This is because it provides a broad array of
information about the patient’s general health and therefore ensures the most suitable therapeutic measures are applied in each case. In other instances, a haematological assessment aids in the
diagnosis of different diseases. The interpretation of haemograms, serum biochemistry, blood gas analyses, or blood smears can often represent a clinical challenge, so the author has written this guide to illustrate various clinical situations and how to resolve them.