How to Deal With a Re-Entrant SVT

If somebody comes in an SVT, you're going to have very, very regular narrow QRS complexes. What about AFib? Irregularly irregular. There's not any rhyme or reason to their cadence at all. Any signal that goes down the accessory pathway, that's going to give you a wide QRS complex. And I would say, call us first for sure, but you can feel pretty comfortable giving that patient a denticine.