<prompt> Max cut oft duration for prolonged seizures post ECT according to American psychiatric society:90 seconds150 seconds120 seconds180 seconds  <response>: Ans. d. 180 secondsThe first behavioral sign of seizure is often plantar, extension, which lasts 10-20 seconds and makes a tonic phase.For monitoring seizure, it should last at least 25 seconds.The onset of seizures activity is sometimes delayed as long as 20-40 seconds after the stimulus administration.Prolonged seizures lasting more than 180 seconds and status epilepticus can be terminated either with additional dose of the barbiturate agent or with IV diazepam Valium 5-10 mg. 