<prompt> Which intravenous anaesthetic agent has high incidence of pychomimetic reactions during early recovery period-KetamineThiopentonePropofolEtomidate  <response>: Ketamine has been associated with emergence reactiondelirium incidence of which ranges from 3 to 100. Emergence reactions seen with ketamine include vivid dreaming, extracorporeal experiences sense of floating out of the body, and illusions misinterpretation of a real, external sensory experience during emergence from anesthesia. These are usually associated with excitement, confusion, euphoria, and fear. Emergence reaction can be reduced by the use of benzodiazepines. 