Please draw and explain the pacemaker action potential

Please draw and explain the cardiac action potential

Explain how antiarrhythmic agents are classified

Which aspects of the cardiac action potential do each class of antiarrhythmic agent act on?

Where does the autonomic system innervate the heart?

Why do tachyarrhythmias occur?

Why might a patient become bradycardic?

Can you explain how an atrioventricular nodal re-entrant tachycardia works?

• Antiarrhythmics summary