To become a veterinary nurse assistant, you need either a bachelor’s degree or an associate degree in veterinary science. Upon receiving this degree, you then need to practice as a student for a period determined by the state in which you intend to practice. There is no federally-mandated period of training or practice to become a vet aide. However, if you want to provide care to animals, you need to pass the Veterinary Technician National Exam. This exam, according to the American Veterinary Medical Association, consists of multiple-choice questions in nine sections devoted to a specific area of animal care, such as anesthesia, emergency medicine, and pharmacology.