ECG Readings Six step method: 1. Rate 2. P waves 3. PR interval 4. QRS 5. Rhythm 6. Interpretation Cases: - Sinus arrythmia Supraventricular Tachycardia (SVT) Paroxysmal supraventricular tachycardia (PSVT) Junctional rhythm Premature atrial complex (PAC) Sinus arrest or pause. Atrial fibrillation Atrial flutter 1st degree AV block 2nd degree AV block, Type I (Wenckebach) 2nd degree AV block, type II 3rd degree AV block (complete heart block) Idioventricular rhythm Premature ventricular complex Bigeminy Couplet Ventricular tachycardia Ventricular fibrillation Asystole