Here are some basic concepts about ECG, the most important one, the conduction system of the heart which helps us to understand why the arrhythmias of the heart are studied in that order.
Begining with everything related to the Sinus Node and Atrium, continuing with the AV node where the conduction is slowed down (blocks are study here also), and then everything regarding the ventricles. If you get the big picture of this ECG will become one of the easiest subjects to learn.....
In all these main places we will have rhythms and arrhythmias that conserve the normal heart rate, and others that are faster or slower depending the location where the impulse is initiatied,.
For example
The normal HR for the Sinus Node is between 60 and 100, So according to this HR if the patient has:
Normal HR (60-100): Sinus Rhythm
Faster HR (>100): Sinus Tachycardia
Slower HR(<60 bradycardia="bradycardia" p="p" sinus="sinus">
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