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Background Knowlege 

It is important to know what is meant by the words depolarisation and repolarisation. In simple terms depolarisation describes the electrical signal discharging and spreading through the certain tissues, and repolarisation describes the tissues charging back up again like a battery. 

 

The heart tissues do this by themselves spontaneously and the rate of this can be controlled by inputs from different nerves and by the sinoatrial node. 

 

A depolarisation will cause a contraction of that part of the heart muscle. A repolarisation happens as that part of the heart relaxes again. 

 

Use this outline if you have no prior knowlege of ECGs, how they work or how to set them up. This map will take you through the basic physics and anatomy, set up of the ECG and will touch on interpretation. There is a test at the end to examine your understanding.

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Use this outline if you have some prior knowlege of how an ECG works, its set up and a good understanding of the anatomy of the heart's conducting system. This will focus on interpreting the readings on different leads of the ECG.

 

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Use this map if you already have a thourough understanding of heart anatomy, different arrythmias and their appearance on ECGs. This map focuses on testing your existing knowledge of interpreting ECGs.

 

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