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
Induction agent of choice in day care surgery is: 
Select and explain. 
A. Ketamine, B. propofol, C. Methohexitone, D. Thiopentone sodium
B: propofol
Answer: B: propofol 
Explanation: Quick induction (30sec) and rapid recovery(4min) are possible from a single dose. Also has anti emetic propey. Due to rapid recovery preferred in day time cases. Effect of ketamine lasts for 10-15 min after a single injection. Thiopentone is neither a good analgesic nor muscle relaxant and duration of action is 4-7min From padmaja 4th edition Page no 195,194