9 results
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
Tachycardia - Differential ... deflection not AVRT ... /AVNRT. ... • Atrial Flutter ... • MAT. 3 types
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... Diagnosis for Arrhythmias ... blocks (1°, 3° and Type ... Flutter (AFL), ... tachycardia (AVRT
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
3 different P wave ... Atrial flutter ... , AVRT, Junctional ... #Tachycardias #differential ... #diagnosis #causes
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... diagnosis includes ... tachycardia ddx: AVNRT ... , AVRT, atrial tachycardia ... #ekg #differential
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(4) Vfib/flutter ... flutter (3) ... 3 different P waves ... #EKG #diagnosis ... electrocardiogram #cardiology #differential
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
(e.g. ectopic atrial ... Flutter PR Interval ... • 2° Block Type ... in aVR Poor R wave ... Electrocardiogram #cardiology #diagnosis
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
the atria and ventricles ... EKG of the same ... are enough to diagnose ... excludes other differentials ... JVP #Cardiology #Neck
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
Palpitations - Differential ... in the chest or neck ... flutter, or atrial ... fibrillation/flutter ... or AVRT • Standing
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
Block - Mobitz Type ... , longer, longer ... Block - Mobitz Type ... independently of the atria ... #ekg #diagnosis