When a dog experiences a seizure, even a brief seizure can seem like an eternity to an observer. Owners of dogs are generally encouraged to time the length of a seizure as that can be one factor that helps to determine a management plan for the dog. Dr. Karen Muñana - a veterinary neurologist at North Carolina State University - explains why we get concerned about seizures lasting more than 5 minutes and what owners may be instructed to do at home until they can reach the veterinary ER. Learn more about canine epilepsy: