Anaesthesia With regard to ketamine, all of the following are true except – A It is a direct myocardial depressant B Emergence phenomenon are more likely if anticholinergic premedication is used C It may induce cardiac dysarythmias in patients receiving tricyclic antidepressants D Has no effect on intracranial pressure 💡 Explanation With regard to ketamine, all of the following are true except – ✓ Correct Answer: D. Has no effect on intracranial pressure