11 results
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Syndrome (SSS) • AV ... (MAT) • AV node ... : AV re-entrant ... tachycardia (AVRT ... ), AV nodal re-entrant
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Arrhythmias • Atrial ... ventricular response • Atrial ... Escape Rhythm • Atrial ... 1 AV Block • Bidirectional ... #ekg #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Atrial flutter ... (3) SVTs - atrial ... atrial tachycardia ... rhythms (5) AV ... block (lower AV
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms = AV ... origin within the atria ... (e.g. ectopic atrial ... atrial rhythm ... • Saw-Tooth = Atrial
Multifocal Atrial Rhythm vs Wandering Atrial Pacemaker
Mutifocal Atrial Rhythm / Multifocal Atrial Tachycardia:
Belong to a group
Multifocal Atrial ... Multifocal Atrial ... terminalis) or in AV ... sharp contrast to AV ... #ecg #electrocardiogram
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
1 AV conduction ... - Mobitz Type 2 ... a Mobitz Type 2" ... independently of the atria ... #electrocardiogram
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
1. ... failure, and death. 2. ... Subepicardial atrial ... , atrial tachycardia ... #electrocardiogram
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Effect in Right Atrium ... Diagnosis 1. ... to right shunt 2. ... Effect #Right #Atrium ... #pocus #bubble
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
relationship (2: ... P and QRS • Atrial ... • Block in AV ... (block beyond AV ... #electrocardiogram
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
x 10 Rhythm (1) ... boxes) - HiPR: AV ... : WPW, ectopic atrial ... #EKG #diagnosis ... #electrocardiogram