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Dynamic ECG Interpretation
II Ready 6-second sweep · real time
Your browser needs canvas support to show the moving ECG. 0 / 30 seconds 25 mm/s equivalent · 10 mm/mV
Rhythm setAll 25 rhythms All sinus rhythms Sinus bradycardia Normal sinus rhythm Sinus tachycardia Sinus arrhythmia Sinus rhythm with a pause All atrial rhythms & svt Sinus rhythm with PACs Atrial fibrillation Atrial flutter Wandering atrial pacemaker Multifocal atrial tachycardia Regular narrow-complex SVT All junctional rhythms Junctional escape rhythm Accelerated junctional rhythm Junctional tachycardia pattern Sinus rhythm with PJCs All av blocks First-degree AV block Second-degree AV block: Mobitz I Second-degree AV block: Mobitz II Third-degree AV block All ventricular rhythms Sinus rhythm with PVCs Idioventricular rhythm Accelerated idioventricular rhythm Monomorphic ventricular tachycardia Ventricular fibrillation Polymorphic VT / torsades pattern RhythmRandom · diagnosis hidden Next ECG strip
Fresh examples · recent-strip history saved on this browser
Pause monitor Replay example Reveal rhythm
Watch the rhythm, estimate the rate, and identify P waves, PR intervals, and QRS width before revealing the answer. Pause at any time to study the monitor.
Each example runs for 30 continuous seconds without joining or looping separate strips. The screen sweeps every six seconds; the example pauses at 30 seconds. Replay the same example or generate a new one.
Synthetic teaching examples for instructor review. Display dimensions scale to your screen; use the time scale rather than physical screen measurements. This section is self-assessment; revealing an answer does not record a missed response.
New examples avoid exact matches among the last 2,000 remembered strips and similar parameters among the last 12 examples of the same rhythm. Rhythm rotation restarts when the selected set changes or the page reloads. Replay intentionally repeats the current example. History stays on this browser and device when storage is available; related rhythms still share their defining patterns.