Welcome to our atrial fibrillation reference page. This page provides a definition followed by an synopsis of EKG features. Links to our practice drills, quizzes, lessons and interactive guides can be found below. Atrial fibrillation is an irregular heartbeat which is frequently rapid.
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Atrial Fibrillation • LITFL Medical Blog • ECG Library Diagnosis
Toggle Menu EKG. Atrial Dysrhythmias - Atrial Fibrillation Description Atrial Fibrillation occurs when multiple electrical impulses occur within within the atria. This chaotic electrical activity results in a chaotic wave form between the QRS complexes. P waves are absent. They are replaced by lower case "f" waves. No P waves means there is no PR interval measurement.
There is no predictable pattern to the irregularity. Consequently, this rhythm is " irrregularly irregular ". The atrial rhythm is completely unorganized and chaotic. Method 1: Divide by 16 small boxes longest R-R interval. Result is 94 bpm.
Atrial fibrillation is the most common arrhythmia encountered in clinical practice. Misdiagnosis of atrial fibrillation carries significant implications for patients. Fibrillation of the atria may result in a chaotic disturbance of the isoelectric line, however, this finding on an ECG can be misleading as muscular activity or agitation can cause a similar appearance. Equally, it can often be difficult to tell if P waves are present or not on an ECG.