MedForge / Apps / ECG Rhythm Trainer
Cardiovascular · Strip reading
ECG Rhythm Trainer
Read the strip. Name the rhythm.
Core rhythms drawn live on ECG paper. Check rate, regularity, P waves and QRS width, then commit to a diagnosis against the clock.
Free preview: Level 1 and four rhythms. Unlock the full library. $2.99/month or $19.99/year
Live demo of ECG Rhythm Trainer
Try it: name this rhythm
Strips are drawn live in the app. These are pre-rendered samples from the same generator.
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In the app
A real screen from ECG Rhythm Trainer
From the iPhone app, in a pre-release build. The Android app follows the same design, and the text size can be changed from 40% to 300% on every screen.

Sources
Every fact in this app is cited
These are the references this app draws on. Inside the app, each answer links to its source in a reading window that keeps your place.
- HypocalcemiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Brugada syndrome (genetics)National Library of Medicine, MedlinePlus Genetics · NIH / NLM MedlinePlus
- Pericardial disordersNational Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Romano-Ward syndrome (genetics)National Library of Medicine, MedlinePlus Genetics · NIH / NLM MedlinePlus
- Sudden cardiac arrestNational Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Wolff-Parkinson-White syndrome (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Heart Attack: What Is a Heart Attack?National Heart, Lung, and Blood Institute · NIH / NHLBI
- Arrhythmias: Long QT SyndromeNational Heart, Lung, and Blood Institute · NIH / NHLBI
- Arrhythmias: Wolff-Parkinson-White SyndromeNational Heart, Lung, and Blood Institute · NIH / NHLBI
- Acute coronary syndromes (NG185): overviewNational Institute for Health and Care Excellence · NICE (UK)
- Anatomy and Physiology 2e: 26.3 Electrolyte BalanceOpenStax, Rice University · OpenStax
- AsystoleStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Second-Degree Atrioventricular BlockStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Brugada SyndromeStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- HyperkalemiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Idioventricular RhythmStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Junctional RhythmStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Left Bundle Branch BlockStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Long QT SyndromeStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Premature Atrial ContractionsStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Premature Ventricular ComplexStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Right Bundle Branch BlockStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Acute ST-Segment Elevation Myocardial Infarction (STEMI)StatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Torsade de PointesStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Wolff-Parkinson-White SyndromeStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Treatment of acute hyperkalaemia in adults (landing page)UK Kidney Association · UK Kidney Association clinical practice guideline
- Accelerated Idioventricular Rhythm (AIVR)Life in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- AV block: 2nd degree, fixed ratio blocksLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- AV Block: 2nd degree, Mobitz II (Hay block)Life in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Digoxin EffectLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Benign Early RepolarizationLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Hypercalcemia ECG changesLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Hypocalcemia ECG changesLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Hypokalemia ECG changesLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Hypothermia ECG changesLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Multifocal Atrial Tachycardia (MAT)Life in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Pacemaker Rhythms: Normal PatternsLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Premature Ventricular Complex (PVC)Life in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Sinoatrial Exit BlockLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Sinus ArrhythmiaLife in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Sinus Node Dysfunction (Sick Sinus Syndrome)Life in the Fast Lane (LITFL), ECG Library · Emergency physician educators (Burns and Buttner)
- Atrial FibrillationNational Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Arrhythmias (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Digoxin: drug informationNational Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Electrocardiogram (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Heart block (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Hypercalcemia (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Low blood potassium (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Heart pacemaker (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Pericarditis (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Paroxysmal supraventricular tachycardia (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Sick sinus syndrome (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Fast heart rate - tachycardia (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Ventricular fibrillation (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Ventricular tachycardia (encyclopedia)National Library of Medicine, MedlinePlus · NIH / NLM MedlinePlus
- Atrial FibrillationNational Heart, Lung, and Blood Institute (NIH) · NHLBI / NIH
- Arrhythmias: TypesNational Heart, Lung, and Blood Institute (NIH) · NHLBI / NIH
- Cardiac ArrestNational Heart, Lung, and Blood Institute (NIH) · NHLBI / NIH
- Pacemakers: What Are Pacemakers?National Heart, Lung, and Blood Institute · NIH / NHLBI
- Atrial fibrillation: diagnosis and management (NG196)National Institute for Health and Care Excellence (NICE) · NICE (UK)
- Cardiac Muscle and Electrical ActivityOpenStax, Rice University (peer-reviewed open textbook) · OpenStax (Rice University)
- Electrocardiographic Early Repolarization in an Emergency Setting: The Subtleties of Electrocardiogram InterpretationPubMed Central · Peer-reviewed article (PMC)
- Atrial FibrillationStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Atrial FlutterStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Acute Myocardial InfarctionStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- First-Degree Heart BlockStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Third-Degree Atrioventricular BlockStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Cardiac Glycoside and Digoxin ToxicityStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- ElectrocardiogramStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- HypercalcemiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- HypokalemiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Multifocal Atrial TachycardiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Pacemaker Types and SelectionStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- PericarditisStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Sinus BradycardiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Sinus TachycardiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Sinus ArrhythmiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Sinus Node DysfunctionStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Supraventricular TachycardiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Ventricular FibrillationStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Ventricular TachycardiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
- Accidental hypothermia: an updateScand J Trauma Resusc Emerg Med 2016 (via PubMed Central) · Peer-reviewed review (PMC)
- HypothermiaStatPearls Publishing, National Library of Medicine (NCBI Bookshelf) · NIH / NLM
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