Supraventricular Tachycardia - EKG Reference

Supraventricular Tachycardia EKG tracing


Caliper Time Interval: ___ seconds

Key Features

RateFast (150-250 bpm)
P WaveMerged with T wave
PR IntervalNormal (0.12 sec)
QRSNormal (.10 sec)
NotesPR interval can be difficult to measure

Supraventricular Tachycardia EKG Reference

Definition of Supraventricular Tachycardia

Supraventricular tachycardia (SVT) is a cardiac arrhythmia characterized by very rapid or erratic beating. SVT is also called paroxysmal supraventricular tachycardia (PSVT).

Types of Supraventricular Tachycardia

  • Atrioventricular nodal reentrant tachycardia (AVNRT)
  • Atrioventricular reciprocating tachycardia (AVRT)
  • Wolff-Parkinson-White syndrome (a type of AVRT)


  • heart racing/palpitations
  • dizziness or light-headedness
  • chest pain
  • breathlessness

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