Under US doctrine, a service dog alert is an assistance animal response to assistance animal recognition of a dystonic episode such as onset of an epileptic seizure, a diabetic blood sugar spike or psychiateic decompensatn, agiation or other state which is undesirable in terma of patient welfare. The recognition-response " dyad" distinguishes an animal trained in its'execution front a mere ESA. Some authorities distinguish alert from response, in that the latter pertains to assistance rendered for a Crisis which has begun and is still in process. Theoretically, a third category of recoery can be added, creating a triune service dog task list pertaining to such crises.