Diagnosis of poisoning is based on history, signs, tissue changes, and laboratory examinations. Giving your veterinarian a complete history is important to help him or her make an accurate diagnosis and begin appropriate treatment. You should have the following information available: 1) sex, age, weight, and number of exposed or sick animals; 2) a list of signs of illness in the order they appeared; 3) any prior disease conditions; 4) any medications the animal is receiving; 5) possible related events, for example, change in diet or water source, other medications, feed additives, or pesticide applications; 6) description of the environment, including access to garbage, machinery, or vehicles; and 7) recent past locations and when a geographic move happened (if applicable).
Also see professional content regarding diagnosis of poisoning in animals Diagnosis of Toxicosis in Animals Pigs dead from exposure to a toxic agent. The death of many animals at one time suggests toxicosis and not infectious disease. Diagnosis of a toxicosis, as with any disease, is based on history... read more .