This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
The most common form of PSVT? 
Select and explain. 
A. Tachycardia originating from the atrium, B. AV nodal reentry tachycardia, C. WPW syndrome, D. Focal atrial tachycardia
B: AV nodal reentry tachycardia
Answer: B: AV nodal reentry tachycardia 
Explanation: Pathologic supraventricular tachycardia A. Tachycardia originating from the atriumDefining feature: tachycardia may continue despite beats that fail to conduct to the ventricles, indicating that the AV node is not paicipating in the tachycardia circuitB. AV nodal reentry tachycardiaDefining feature: paroxysmal regular tachycardia with P waves visible at the end of the QRS complex or not visible at allThe most common paroxysmal sustained tachycardia in healthy young adults; more common in womenC. Tachycardias associated with accessory atrioventricular pathwaysDefining feature: paroxysmal sustained tachycardia similar to AV nodal reentry; during sinus rhythm, evidence of ventricular preexcitation may be present (Wolff-Parkinson-White syndrome) or absent (concealed accessory pathway)Harrison 19e pg: 1476