15 results
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
Arrhythmias • Atrial ... ventricular response • Atrial ... Escape Rhythm • Atrial ... Tachycardia with 2: ... 1 AV BlockBidirectional
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
1 2°) • His-purkinje ... tachycardia • Atria ... : Premature Atrial ... Flutter (AFL), Atrial ... FAT), Multifocal Atrial
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
1 AV conduction ... Type 2 "If some ... a Mobitz Type 2" ... independently of the atria ... #heartblock #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Atrial flutter ... (3) SVTs - atrial ... (3) Multifocal atrial ... 1 , 3:2, 4:3, etc ... block (lower AV
Bradycardia - Differential Diagnosis Framework and Management
Narrow Complex Bradycardia:
 • Regular: Sinus Bradycardia, AFib w/ AV
Block, Atrial Tachy ... AV Block, Mobitz ... II AV Block Wide ... Bradycardia Management: 1) ... 2) Prepare for transcutaneous
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Effect in Right Atrium ... Differential Diagnosis 1. ... to right shunt 2. ... Effect #Right #Atrium ... echocardiogram #s4c #pocus #bubble
Atrial Fibrillation Overview

Symptoms:
Palpitations, light-headedness, dizziness, dyspnea, exercise intolerance, chest pain, near-syncope, syncope.

1. Why?
Cardiac:
• Valvular heart disease
•
Atrial Fibrillation ... near-syncope, syncope. 1. ... Endocrinopathies 2. ... Rate Control • β-Blocker ... Anticoagulation #Atrial
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
relationship (2: ... 1 or 3:1 block) ... P and QRS • Atrial ... • Block in AV ... beyond AV node)
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Phase 2 - Plateau ... • Atrial depolarization ... contraction of atrial ... Classification: CLASS 1 ... duration CLASS 2
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
origin within the atria ... (e.g. ectopic atrial ... Morphology = multifocal atrial ... • Saw-Tooth = Atrial ... • 2° Block Type