21 results
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
with prolonged PR ... Type 1 (Weinckebach ... Type 2 "If some ... have a Mobitz Type ... independently of the atria leading
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• Prolonged PR ... • Block in AV ... beyond AV node) ... #HeartBlocks #Types ... #Classification
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Second Degree Heart Block ... , Mobitz Type I ... • PR interval ... beating" • The block ... always within the AV
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... Block Type I aka ... Block type II ( ... There is constant PR ... electrocardiogram #classification
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Type 1 Second-degree ... AV block, also ... disease of the AV ... prolongation of the PR ... QRS complex, the PR
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
Second Degree Heart Block ... , Mobitz Type II ... • PR intervals ... is below the AV ... system #Mobitz #Type2
Bradycardias Comparison Table
 - SINUS BRADYCARDIA 
 - JUNCTIONAL BRADYCARDIA 
 - 1st DEGREE AV BLOCK
Bradycardias Comparison Table ... - 1st DEGREE AV ... BLOCK - 2nd DEGREE ... AV BLOCK Type 1 ... Common #Comparison #Table
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... Block type II ( ... There is constant PR ... (AV node). ... TypeII #MobitzII #Type2
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Type 1 Second-degree ... AV block, also ... disease of the AV ... prolongation of the PR ... QRS complex, the PR
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... depolarization • ↑ PR ... interval to prolong AV ... velocity) - ↑ PR ... #Pharmacology #Classification