To interpret abnormal ECG rhythms, the first skill you need is to know the difference between regular, grouped and irregular rhythms. We call this the regularity.

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This ECG Archive is an academic, non-commercial #FOAMed project aiming to crowdsource a free open access database of ECGs and signs. If you include your personal details such as your name you will be attributed for your contribution, unless you tell us that you don't want this to happen. Personal contact details such as email addresses will not be published but may be used to email you in reply. Full project details and participant information available here.


Arrest Rhythms
  • Arrest Rhythms:
  • Fibrillation and flutter
  • Fibrillation and flutter:
  • Regularly Irregular Rhythms
  • Regularly Irregular Rhythms: