11 results
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Complete Heart Block ... Tachycardia with 2:1 AV ... BlockBidirectional ... Arrhythmias #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
Degree AV Block ... independently of the atria ... #heartblock #cardiology ... #ecg #ekg #diagnosis ... #electrocardiogram
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
of a Premature Atrial ... finds the right bundle ... • PAC can be blocked ... #PACs #cardiology ... #ecg #electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... (3) SVTs - atrial ... block (lower AV ... #electrocardiogram ... #cardiology #differential
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart ... P and QRS • Atrial ... • Block in AV ... #electrocardiogram ... #ecg #cardiology
First Degree AV Block
 • The P wave is normal in morphology.
 • PR interval greater
First Degree AV ... is an existing bundle ... Degree #AVBlock #1st ... #ecg #ekg #cardiology ... #electrocardiogram
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
assoc with 1K, AV ... LPFB (see below), 1st ... #diagnosis #cardiology ... #electrocardiogram ... #differential
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
interval < 120 ms = AV ... (e.g. ectopic atrial ... Interpretation #ECG ... #Electrocardiogram ... #cardiology #diagnosis
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Subepicardial atrial ... criteria only looks ... #electrocardiogram ... #differential # ... cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Elevation - Differential ... Branch Block: ... block; and sinus ... #diagnosis #cardiology ... #ecg #ekg #electrocardiogram