This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
Anesthetic agent causing bradycardia are all EXCEPT: 
Select and explain. 
A. Halothane, B. Isoflurane, C. Thiopentone, D. Ketamine
D: Ketamine
Answer: D: Ketamine 
Explanation: Ketamine REF: Miller 6'1' ed p. 345 Though ketamine directly causes cardiodepression but due its sympathetic effect it causes Increased HR Increased BP Increases cardiac output.