<prompt> Following are steps of rapid sequence intubation excepti.v thiopentone i.v succinylcholine is used for paralysis with inductionBag and mask ventilation is used for positive pressure ventilation.Sellicks maneuver is used to prevent aspirationPre-oxygenation is mandatory.  <response>: Bag and maskventilation is contraindicated in rapid sequence intubation because of risk of aspiration. 