8 results
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... I Heart Block ( ... . 2nd Degree, Mobitz ... • Block in AV ... HeartBlocks #Types #Classification
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
• Third degree block ... or 3rd degree block ... Class II: • Mobitz ... arrest, prolonged PR ... of AV block -
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
with prolonged PR ... - Mobitz Type 1 ... - Mobitz Type 2 ... with progressive PR ... independently of the atria leading
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... Type I aka Mobitz ... type II (aka Mobitz ... There is constant PR ... electrocardiogram #classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... : • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
: • MOA: Block ... : • MOA: Block ... primarily) and block ... : • MOA: Block ... velocity) - ↑ PR
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
heart is pounding, racing ... with variable block ... atrioventricular block ... or sinus node dysfunction ... withdrawal of β-blockers
Intrapartum Abnormal Fetal HR Tracing - Causes of Bradycardia and Tachycardia - Differential Diagnosis Algorithm
Maternal Bradycardia:
Abnormal Fetal HR Tracing ... - Causes of Bradycardia ... Differential Diagnosis Algorithm ... congenital heart block ... Differential #Diagnosis #Algorithm