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The following list of ECG diagnoses was derived from a recently published statement of the American College of Cardiology/American Heart Association (ACC/AHA) Committee to Develop a Clinical Competence Statement on Electrocardiography and Ambulatrory Electrocardiography (J Am Coll Cardiol 2001;38:2091-2100). These diagnoses are considered to be the minimum knowledge necessary for competence in interpreting 12-lead ECGs. Items in the list are linked to topics in the ECG Outline of the Alan E. Lindsay ECG Learning Center or to ECG examples in the Image Index.
Normal Tracing
Technical Problem
- Lead Misplaced
- Artifact
Sinus Rhythms/Arrythmias
- Sinus rhythm (50-90 bpm)
- Sinus tachycardia (>90 bpm)
- Sinus bradycardia (<50 bpm)
- Sinus Arrhythmia
- Sinus arrest or pause
- Sino-atrial exit block
Other SV Arrythmias
- PAC's (nonconducted)
- PAC's (conducted normally)
- PAC's (conducted with aberration)
- Ectopic atrial rhythm or tachycardia (unifocal)
- Multifocal atrial rhythm or tachycardia
- Atrial fibrillation
- Atrial flutter
- Atrial Flutter With 2:1 AV Conduction
- Atrial Flutter With 2:1 AV Conduction
- Atrial Flutter With 3:2 AV Conduction
- Atrial Flutter with 3:2 Conduction Ratio
- Atrial Flutter With Variable AV Block And Rate-Dependent LBBB
- Atrial Flutter With 2:1 AV Conduction
- LBBB and Atrial Flutter with 2:1 AV Block
- Atrial Flutter With 2:1 and 4:1 Conduction and Rate Dependent LBBB
- Atrial Flutter With 2:1 AV Conduction
- Atrial Flutter With 2:1 AV Conduction
- Atrial Flutter With Variable AV Block
- Atrial Flutter With 2:1 Conduction
- Atrial Flutter with 2:1 Block
- Junctional prematures
- Junctional escapes or rhythms
- Accelerated Junctional rhythms
- Junctional tachycardia
- Junctional Tachycardia With Exit Block
- Junctional Tachycardia With and Without AV Block
- Junctional Tachycardia With and Without Exit Block
- Paroxysmal supraventricular tachycardia
Ventricular Arrythmias
AV Conduction
- 1st degree AV block
- 1st Degree AV Block
- A Most Unusual 1st Degree AV Block
- Left Atrial Abnormality & 1st degree AV Block
- Left Atrial Abnormality & 1st Degree AV Block
- A Very Subtle 1st Degree AV Block
- Type I 2nd degree AV block (Wenckebach)
- Type II 2nd degree AV block (Mobitz)
- AV block, advanced (high grade)
- 3rd degree AV block (junctional escape rhythm)
- 3rd degree AV block (ventricular escape rhythm)
- AV dissociation (default)
- AV dissociation (usurpation)
Intraventricular Conduction
QRS Axis and Voltage
- Right axis deviation (+90 to +180)
- Left axis deviation (-30 to -90)
- Bizarre axis (-90 to -180)
- Indeterminate axis
- Low voltage frontal plane (<0.5 mV)
- Low voltage precordial (<1.0 mV)
Hypertrophy/Enlargements
ST-T, and U Abnormalities
MI Patterns (acute, recent, old)
Clinical Disorders
- Chronic pulmonary disease pattern
- Suggests hypokalemia
- Suggests hyperkalemia
- Suggests hypocalcemia
- Suggests hypercalcemia
- Suggests digoxin effect