This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
Hallucinations are seen after ............... anaesthesia: 
Select and explain. 
A. Ketamine, B. Thiopentone, C. Fentanyl, D. Nitrous oxide
A: Ketamine
Answer: A: Ketamine 
Explanation: Ketamine anesthesia produces hallucination and delirium(pyschomimetic effect). Thiopentone , Fentanyl and nitrous oxide are devoid of these effects. From padmaja 4th edition Page no 196,195