This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
Drug of choice for acute PSVT 
Select and explain. 
A. Esmolol, B. Adenosine, C. Digoxin, D. Verapamil
B: Adenosine
Answer: B: Adenosine 
Explanation: Adenosine is used for acute termination of PSVT Verapamil and esmolol are used as an alternate 2nd choice of drugsRef: Katzung 11th ed pg 243