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The Importance of Diagnosing Bradycardia
Is the bradycardia problem caused by something that is south of the AV node, meaning in the histpricin-G system? Or is it anatomically in the atrium, which would be either the sinus node or the AV node? We'll talk in a minute about how you do this. Skinny QRS equals proximal disease 99.99% of the time. A fat QRS, bundle branch block, gets a little more complicated. You can have junctional or AV nodal. Even coffee has an effect on heart rate.