This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intravenous Anesthetic Agents, Subject name: Anaesthesia
The cardiovascular side effect of Dexmedetomidine is following 
Select and explain. 
A. Hypotension and Bradycardia, B. Hypeension and Tachycardia, C. Hypotension and Tachycardia, D. Hypeension and Bradycardia
A: Hypotension and Bradycardia
Answer: A: Hypotension and Bradycardia 
Explanation: Dexmetetomidine is a highly selective alpha2 - adrenoceptor against thus can cause hypotension and Bradycardia. Dexmedetomidine * Highly selective alpha - 2 adrenoreceptor agonist * Used mainly as IV adjunct during induction and /or maintenance of general anesthetics * Minimal respiratory and cardiovascular depression * Good sedation , good analgesic, sympatholytic effects * Selectivity for alpha1: alpha 2 receptors is 1:1640