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Atrial echo beat

ECG Basics: Sinus Rhythm With A Premature Beat

Thu, 03/19/2015 - 14:11 -- Dawn

This strip offers something interesting for both your basic-level students and for your more advanced students.  First, it is a good example of sinus rhythm with a premature beat.  The PR interval was measured by the machine at .21 sec (218 ms).    The premature beat is supraventricular - that is, it is not a PVC.  Because of the slightly long PRI in this strip, it's P wave COULD be buried in the preceding T wave.  That would make this a premature atrial contraction (PAC).  

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