Supraventricular Tachycardia
Regular; P to P is regular fi P waves can be identified, 150 to 250 bpm
Regular; R to R intervals are regular, 150 to 250 bpm
Difficult to detect or hidden because of the fast heart rate
Unchanged unless aberrant conduction due to premature beat or increased rate
PR: not measurable
QRS: <0.12 sec