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Sinus Node Rhythms and Arrhythmias: Difference between revisions
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Sinus Node Rhythms and Arrhythmias (view source)
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==Interpretation of the heart rhythm== | ==Interpretation of the heart rhythm== | ||
A good stepwise approach to interprete the heart rhythm is to follow these steps: | A good stepwise approach to interprete the heart rhythm is to follow these steps: | ||
* '''Cherchez le P''', French for ''find the P waves''. | |||
** Do you see P waves? Leads II and V1 are often most suitable to find P waves. | ** Do you see P waves? Leads II and V1 are often most suitable to find P waves. | ||
** What is the [[rate]] of the P waves? | ** What is the [[rate]] of the P waves? | ||
** What is the [[P wave morphology]]? | ** What is the [[P wave morphology]]? | ||
* What is the relationship between P waves and QRS complexes? | |||
** Is every P wave followed by a QRS complex? And every QRS preceded by a P wave? In short: is there a 1:1 relation between P waves and QRS complexes? | ** Is every P wave followed by a QRS complex? And every QRS preceded by a P wave? In short: is there a 1:1 relation between P waves and QRS complexes? | ||
** What is the [[Conduction|PR interval]] and does it change? | ** What is the [[Conduction|PR interval]] and does it change? | ||
* What is the ventricular [[heart rate]]? | |||
* What is the [[QRS morphology]]? | |||
* What is the clinical setting? | |||
==Sinus arrhythmias== | ==Sinus arrhythmias== | ||