<prompt> With regard to Ketamine, all of the following are true except:It is a direct myocardial depressantEmergence phenomenon are more likely if anticholinergic premedication is usedIt may induce cardiac dysarythmias in patients receiving tricyclic antidepressantsHas no effect on intracranial pressure  <response>: D i.e. Has no effect on intracranial pressure 