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What is an ECG?
What is sinus rhythm?
What causes upward and downward deflections on an ECG?
In which general direction do electrical waves in the heart travel?
How many electrodes does a 12 lead ECG have?
Where are the limb leads placed?
Which leads derive from the limb leads?
What is lead I?
What is lead II?
What is lead III?
What does the 4th limb lead (RL) do then?
How is aVR derived?
How is aVL derived?
How is aVF derived?
How many chest leads are there?
How are these different to the limb leads?
Where is V1 placed?
Where is V2 placed?
Where is V3 placed?
Where is V4 placed
Where is V5 placed?
Where is V6 placed?
How do you calculate the HR from an ECG?
What does each small square (horizontally) represent?
