18 results
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
w/ BBB (3) SVT ... 3 different P waves ... block (lower AV ... #EKG #diagnosis ... electrocardiogram #cardiology #differential
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... rhythm, Conduction blocks ... (1°, 3° and Type ... system: Conduction blocks ... (1°, 3°, and Type
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
" • Complete Heart ... independently of the atria ... and the rate is set ... #Blocks #heart ... #ekg #diagnosis
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
Neck Examination ... : 3rd deg AV block ... dual-chamber PPM set ... for DDI and an atrial ... tachycardia much
Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
Complete heart block ... ) block, AV disso­ciation ... tachycardia with ... vari­able AV block ... Diagnosis #Cardiology #EKG
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
events in-hospital. heart ... Subepicardial atrial ... tachycardia (SVT ... criteria only looks ... #differential #
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Heart Block: ... P and QRS • Atrial ... • Block in AV ... #HeartBlocks #Types ... summary #Diagnosis #EKG
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... interval < 120 ms = AV ... (e.g. ectopic atrial ... Type II - Suddenly ... proportional to heart
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
Palpitations - Differential ... in the chest or neck ... variable block ... atrioventricular block ... Palpitations #Cardiology #Differential
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Nodal Reentrant Tachycardia ... pathway which blocks ... - Premature atrial ... ECG usually shows ... Pathophysiology #cardiology #SVT