Junctional rhythm ekg

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The document discusses junctional rhythms, which originate from the atrioventricular (AV) node. The AV node has three main functions: it slows conduction to allow for atrial emptying before ventricular contraction, it acts as a secondary pacemaker with a rate of 40-60 beats per minute (bpm), and it blocks some impulses from being conducted to the ventricles during rapid atrial rates. Premature junctional contractions are early beats originating in the AV junction that can cause slight…

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