This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Preoperative assessment and monitoring in anaesthesia, Subject name: Anaesthesia
Preanaesthetic medication is used for all except 
Select and explain. 
A. Decrease anaesthetic doe, B. Decrease blood pressure, C. Prevents aspiration, D. Produces amnesia for perioperative events
B: Decrease blood pressure
Answer: B: Decrease blood pressure 
Explanation: Complications of Anaesthesia During anaesthesia: > Respiratory depression - Salivation, respiratory secretions > Cardiac arrhythmias > Fall in BP > Delirium and convulsion > Fire and explosion After anesthesia: Nausea and vomiting > Nerve palsies > Emergence delirium > Cognitive defects