16 results
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Arrhythmias • Atrial ... Tachycardia with 2:1 AV ... BlockBidirectional ... Arrhythmias #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
flutter, Junctional ... AV block, Multifocal ... branch block, Atrial ... AV block & bundle ... Differential #Diagnosis #cardiology
Hallmark ECG features of Ventricular Tachycardia (VT)
AV indicates atrioventricular; LAD, left axis deviation; LBBB, left bundle
Hallmark ECG features ... Tachycardia (VT) AV ... branch block; NW ... #EKG #Electrocardiogram ... #Diagnosis #Cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... (3) Multifocal atrial ... block (lower AV ... #electrocardiogram ... #cardiology #differential
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
- Decreases AV ... fibrillation and atrial ... flutter (rate control ... #EKG #Cardiology ... #Digitalis #ECG
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
to concomitant bundle ... branch block ... is below the AV ... HeartBlock #Diagnosis #Cardiology ... #EKG #ECG #Electrocardiogram
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
of a Premature Atrial ... finds the right bundle ... period of the AV ... #PACs #cardiology ... #ecg #electrocardiogram
First Degree AV Block
 • The P wave is normal in morphology.
 • PR interval greater
First Degree AV ... is an existing bundle ... First #Degree #AVBlock ... #1st #ecg #ekg ... #cardiology #electrocardiogram
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
node (His bundle ... independently of the atria ... heart #heartblock #cardiology ... #ecg #ekg #diagnosis ... #electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
P and QRS • Atrial ... • Block in AV ... beyond AV node) ... #electrocardiogram ... #ecg #cardiology