12 results
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Second-degree AV block ... node.Mobitz I heart block ... prolongation of the PR ... QRS complex, the PR ... #Clinical #EM #IM
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Second-degree AV block ... node.Mobitz I heart block ... prolongation of the PR ... QRS complex, the PR ... #Clinical #EM #IM
Mobitz II heart block is characterized on a surface ECG by intermittently nonconducted P waves not
block is characterized ... not preceded by PR ... not followed by PR ... II blocks. ... #Clinical #EM #IM
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Summary of Heart Blocks ... • Prolonged PR ... Treatment 2nd Degree, Mobitz ... . 2nd Degree, Mobitz ... HeartBlocks #Types #Classification
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Placement Indications Class ... • Symptomatic Mobitz ... I or II • Mobitz ... Class II: • Mobitz ... arrest, prolonged PR
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
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... : • MOA: Block ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification
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 Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
channels open leading ... Vaughan Williams Classification ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... are present • Classic ... Low Grade - Slow growing ... Lymphoproliferative #Disorders #Classification ... #differential #algorithm