Introduction to the 3-lead ECG and normal sinus rhythm.

Learning Outcomes:

• Recognise the importance of the role of cardiac action potentials in the conduction of electrical impulses through the heart.
• Explain the normal pathway of electrical conduction through the heart referring to recognised anatomical landmarks.
• Describe how a patient should be appropriately prepared for an ECG, how electrodes should be placed and what views of the heart can be achieved.
• Recognise the component waveforms, intervals, segments, and timings of a normal ECG complex.
• Apply a conventional approach to aid the systematic interpretation of a 3-lead ECG rhythm strip in order to identify normal sinus rhythm (NSR).