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
Preanesthetic medication is used for A/E – 
Select and explain. 
A. Decrease of anesthetic dose, B. Decrease BP, C. Prevent aspiration, D. Produce amnesia for peri-operative events
B: Decrease BP
Answer: B: Decrease BP 
Explanation: Premedications are not used to decrease BP. They are used to the relief of anxiety, to decrease the dose of anaesthesia, to prevent aspiration, to decrease secretion & vagal stimulation, to produce perioperative amnesia, and to prevent post-operative nausea & vomiting.