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Cardiac Tests

Electrocardiography (ECG)

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Learn about the key parts of the cardiac conduction system and how Electrocardiography (ECG) traces are generated. Understand the relationship between a typical ECG trace and the part of the heart undergoing a change in electrical activity, and how different leads can generate different traces.

Learning Outcomes

  • Identify key parts of the cardiac electrical conduction system
  • Position the limb electrodes
  • Relate ECG traces to the underlying cardiac activity and the electrodes and leads used in generating them
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Concepts Principles and Theories

  • What are the main parts of the electrical conduction system in the heart 
  • What is meant by a positive deflection and negative deflection 
  • What is happening during the P wave, QRS complex and T wave
  • What the ST segment and QT interval represent 
  • What is meant by a lead

Using Instruments and Equipment

  • How to position the four limb electrodes for an optimal ECG trace
  • How to configure the positive and negative electrode for limb leads

Interpreting and Analysing Data

  • How ECG traces relate to the underlying cardiac activity
  • How the characteristic waveforms of traces differ between leads 

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Cardiac Tests

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