What is paroxysmal supraventricular tachycardia,”Narrow QRSTreat: Stimulate vagus nerve (valsalva, carotid massage, hold breath
head in cold water)*Acute: Adenosine > Verapamil or BB*Ppx: Digoxin > Verapamil or BB*Digoxin toxicity: Atrial tachycardia with 2:1 block”