Introduction
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The ECG is a basic investigation that is widely used in medicine
- You are guided through a module based on your objectives.
- This package teaches you the important fundamentals of recording a 12-lead ECG and labeling the ECG.
- Numerous patient cases are provided for evaluation while your understanding of material will be tested at the end of the module
Normal activation of the heart
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The resting potential is maintained by ionic gradients across the cells with a higher sodium concentration outside and higher potassium concentration inside
- Following a stimulus, a rapid inward movement of sodium occurs causing a loss of the negative internal potential. This is called as depolarization.
- This is followed by repolarization, a slower process than depolarization where the potassium moves out of the cell
