Cardiac Arrhythmia

Welcome to our Cardiac Arrhythmia Training and Reference Guide Center. This page provides a summary definition followed by paragraphs which describe our practice drills, quizzes, lessons and interactive guides.

What is Cardiac Arrhythmia?

Cardiac arrhythmia describes an abnormally beating heart. It may have an irregular rhythm or may have a rate that is too slow or too fast.

Cardiac Arrhythmia Diagnosis

A range of tests may be used to study a patient's cardiac arrhythmia: electrocardiograms, stress tests, holter monitors, event monitors, echocardiograms, electrophysiology studies, head-up-tilt-table tests and cardiac catheterization. This website provides several free arrhythmia training tools:

  • Arrhythmia Introduction Course
  • Arrhythmia Practice Drills
  • Graded Quiz

Cardiac Arrhythmia Training

Learn how to recognize the essential features of an EKG with this short course. Features covered include calculating heart rate from an EKG tracing, assessing cardiac rhythm, observing P-wave forms, and measurement of intervals and segments. An emphasis in placed on user interactivity.

Cardiac Arrhythmia Training

Arrhythmia Practice Drills

Use our cardiac arrhythmia practice strips to build EKG skills and knowledge. Using over one hundred tracings, across 30 types of EKGs, these rhythm practice strips provide a fun challenge. After answering the drill question, the answer is evaluated and detailed coaching feedback is provided.

Arrhythmia Practice Drills

Arrhythmia Quiz

The quiz present twenty EKGs. Feedback is provided with each answer and a cumulative score is kept. At the end of the quiz fully graded report is provided. Scoring averages for all users are available.

ECG Quiz

ECG Monitor Challenge (beta version)

The ECG Monitor Quiz is allows users to practice reading EKG's, but using a simulated EKG patient monitor with moving waveform instead of a static paper tracing.

ECG Monitor Challenge

Types of Cardiac Arrhythmia

The origin and heart rate are used to help classify cardiac arrhythmias.

  • Fast (over 100 beats per minute) heart rhythms are described by the term Tachycardia. Tachycardias can originate in the atria or ventricles.
    • Atrial arrhythmias begin in the atria (also called supraventricular). These include several types of arrhythmias:
      • Atrial fibrillation
      • Atrial flutter
      • Supraventricular tachycardia
      • Wolff-Parkinson-White syndrome
      Ventricular arrhythmias originate in the ventricles and have several types:
      • Long QT syndrome
      • Premature ventricular contractions
      • Ventricular fibrillation
      • Ventricular tachycardia

  • Slow (under 60 beats per minute) heart rhythm are described by the term Bradycardia.
    • Bradyarrhythmias are slow heart rhythms caused by problems in the heart's electrical conduction system. There are several types of bradyarrhythmias:
      • Conduction Block
      • Sinus bradycardia
      • Sick Sinus Syndrome
  • A extra beat, occurring earlier than normal, is terms a Premature Beat. Some patients may describe a feeling of a skipped beat.








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