was created with Spire.PDF for .NET.\r5. Master the cardiogram features of arrhythmia\ra) Sinus tachycardia, sinus bradycardia, sino-auriculau heart-block.\rb) Atrial premature beats, junctional premature beat, premature ventricular\rcontraction\rc) Auricular tachycardia, paroxysmal supraventricular tachycardia, ventricular\rtachycardia\rd) Atrial fibrillation, atrial flutter, ventricular fibrillation\re) Atrioventricular heart-block, intraventricular conduction defect.\rf) Anomalous atrioventricular excitation.\r6. Understand the usage of digitalis and the cardiogram features of hyperpotassemia and\rhypokalemia.\r7. Understand the cardiogram features of artificial cardiac pacing.\r8. Understand the dynamic electrocardiogram and treadmill test.