Final answer:
A simple febrile seizure generally lasts from a few seconds to 15 minutes, with the majority ending in less than 5 minutes. Medical attention should be sought if the seizure extends beyond 5 minutes.
Step-by-step explanation:
Simple febrile seizures are characterized by their short duration and lack of recurrent events within a 24-hour period. A typical episode of a simple febrile seizure lasts anywhere from a few seconds to 15 minutes. However, most seizures last less than 5 minutes. It's important for parents and guardians to monitor the duration of the seizure and to seek medical attention if the seizure lasts longer than 5 minutes, as prolonged seizures may require immediate medical intervention.