This handy guide is packed with up-to-date information about the most common dog diseases and answers many questions that veterinarians are asked: How do you perform an allergy test on dogs? What indicates an underactive or overactive thyroid? How does cortisone actually work, and what can be done for arthritis? Chapters on prevention and first aid further complement the topic. The clear layout helps you quickly find the right subject and better assess when a visit to a real veterinarian is necessary in case of an emergency.