21 results
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... Diagnosis for Arrhythmias ... re-entrant tachycardia (AVNRT ... tachycardia (V-tach ... #cardiology
Tachycardia - Differential Diagnosis and Management - Narrow vs Wide, Regular vs Irregular
Narrow - Regular:
Use P
Tachycardia - Differential ... /AVNRT. ... • Atrial Flutter ... Each beat identical ... #cardiology #wide
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
diagnosis includes ... tachycardia ddx: AVNRT ... , AVRT, atrial tachycardia ... #ekg #differential ... #cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Treatment of Stable ... Converts - Probably AVnRT ... Control rate (e.g ... #Tachycardia #Treatment ... #management #cardiology
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Tachycardia (MAT) • At least ... • Oxygen • Treatment ... #Diagnosis #ECG ... #EKG #Management
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
, the atria and ... EKG of the same ... are enough to diagnose ... excludes other differentials ... narrow complex tach
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... Diagnosis Algorithm ... Rhythm Abnormal Beats ... Aflutter • AVNRT ... #Differential #
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• No Treatment ... P and QRS • Atrial ... degrees #summary #Diagnosis ... #EKG #electrocardiogram ... #ecg #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(3) SVTs - atrial ... (3) Multifocal atrial ... #EKG #diagnosis ... electrocardiogram #cardiology ... #differential
Mesenteric Ischemia - Differential Diagnostic Schema
Chronic: ASCVD, Venous, Vasculitides 5% (PAN, [E]GPA, IgA, MPA)
Acute
 - Venous
Diagnostic Schema ... Acute - Venous (least ... inflammation (e.g ... pancreatitis) - Arterial ... hypovolemia), Meds/Treatments