Veterinarians employ state-of-the-art technology that is very similar to technology used in the treatment of humans. Veterinarians in private clinical practice work to prevent disease and other health problems in their patients. They examine animal patients, vaccinate them against diseases, prevent the transmission of animal disease to people, and advise owners on ways to keep pets and livestock well nourished and healthy. When health problems develop, practitioners must diagnose the problem and treat the patients. Accurate diagnosis frequently requires the use of laboratory tests, radiography or x-rays, and specialized equipment. Treatments may involve a number of procedures including emergency lifesaving measures, prescribing medication, setting a fracture, delivering a calf, performing surgery, or advising the owner on feeding and care of the patient. Doctors of Veterinary Medicine and Veterinary Surgeons are medical professionals whose primary responsibility is protecting the health and welfare of animals and people. The term "veterinarian" comes from veterinae, which means "working animals." Every veterinarian has gone through extensive medical training for animals and has received a license to practice veterinary medicine. Veterinarians diagnose and control animal diseases, treat sick and injured animals, prevent the transmission of animal diseases to people, and advise owners on proper care of pets and livestock. They ensure a safe food supply by maintaining the health of food animals. Veterinarians are also involved in wildlife preservation and conservation and public health of the human population. In a clinical setting, this type of veterinarian will be able to guide you in all aspects of pet maintenance, including food requirements, daily care, and any special needs. They will also be able to provide vaccinations, complete surgery, and even prescribe medicines as needed.