Paroxysmal Rhythms
Paroxysmal means sudden onset. In class, whenever you see a rhythm 'suddenly' get significantly faster (100 b/min or faster) this is a paroxysmal rhythm. For class, we will ONLY identify a paroxysmal rhythm when we see it (like below). Often times our textbook author will say this is a 'paroxysmal rhythm', meaning the author wanted you to know it suddenly happened.
For the interpretation. Interpret a paroxysmal rhythm like TWO rhythms. Interpret the FIRST rhythm and then the Paroxysmal rhythm. Interpet like below: NSR into paroxysmal atrial tachycardia.
EKG Page