Cardiac monitor tech

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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Supraventricular tachycardia (SVT) is a fast rhythm originating in the heart's upper chambers (atrium). Usually, your heart rate is between 60 and 100 beats per minute. However, SVTs are significantly faster, occurring between 150 and 220 beats per minute.

Basic ECG Interpretation

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EKG Heart Rhythms Cheat Sheet EKG Heart Rhythms Cheat Sheet

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Worked examples of the three main methods to calculate ECG rate, along with an explanation of paper speeds and relevant clinical applications