Tachyarrhythmias are either the result of 1) increased automaticity 2) triggered activity or 3) reentry. Reentry is the most common clinically significant etiology. Tachyarrhythmias can also be classified as SVT (normal QRS) or ventricular (QRS > 0.12s). Algorithm / Suggestions for Accurate Diagnosis Narrow Complex Tachyarrhythmias (QRS < 0.12s) First look at the rhythm and […]