It can be associated with digitalis toxicity. It may also be due to onset of acute coronary syndrome, heart failure, conduction system diseases with enhanced automaticity, or administration of theophylline.
Junctional tachycardia
Ventricular escape beat
Sinus arrhythmia
Sinoatrial arrest
Automatic tachycardia
Junctional ectopic tachycardia
Paroxysmal tachycardia
Inappropriate sinus tachycardia