13 results
Tachyarrhythmia Framework - Differential Diagnosis
 • Narrow QRS - Regular Rhythm: Sinus tachycardia, AVNRT, Orthodromic AVRT,
flutter w/ variable AV ... branch block, Atrial ... with variable AV ... block & bundle ... #Diagnosis #cardiology
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
Degree AV Block ... 1 AV conduction ... independently of the atria ... leading to AV node ... #heartblock #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... rhythm, Conduction blocks ... system: Conduction blocks ... Arrhythmias #Anatomical #Differential ... Diagnosis #Causes #cardiology
Bradycardia - Differential Diagnosis Framework and Management
Narrow Complex Bradycardia:
 • Regular: Sinus Bradycardia, AFib w/ AV
Block, Atrial Tachy ... AV Block, Mobitz ... Bradycardia Management: 1) ... epinephrine 4) Page Cardiology ... Diagnosis #Management #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(3) SVTs - atrial ... (3) Multifocal atrial ... block (lower AV ... electrocardiogram #cardiology ... #differential
Negative Contrast Effect in Right Atrium - Differential Diagnosis
1. Small secundum ASD or PFO with left
Negative Contrast ... Diagnosis 1. ... #Diagnosis #cardiology ... echocardiogram #s4c #pocus ... #bubble
Supraventricular Tachycardia (SVT) - Differential Diagnosis Framework and Management

Regular SVT: Sinus Tachycardia, AVNRT, AVRT, Atrial Flutter,
Tachycardia (SVT) - Differential ... AFIb w/ variable block ... Valsalva Maneuver: 1) ... semi-recumbent position 3) Ask ... Diagnosis #Management #cardiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Atrial depolarization ... contraction of atrial ... Classification: CLASS 1 ... inotropy) ACCP Cardiology ... pathophysiology #phases #cardiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
Interpretation Cheat Sheet 1) ... = AV junction ... Interval: • 1° ... (V1, V4R) • Posterior ... Electrocardiogram #cardiology
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
x 10 Rhythm (1) ... boxes) - HiPR: AV ... block - LoPR: ... WPW, ectopic atrial ... electrocardiogram #cardiology