15 results
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
• Symptomatic Mobitz ... I or II • Mobitz ... Class II: • Mobitz ... LBBB with syncope Class ... arrest, prolonged PR
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
Hyperkalemia - Management Algorithm
 • IV calcium
 • IV insulin and glucose and/or salbutamolt
 • Consider
Hyperkalemia - Management ... Algorithm • IV ... waves, Prolonged PR ... , asystole #hyperkalemia ... diagnosis #management #algorithm
Bradycardia Diagnostic and Management Algorithm

CONSIDER ETIOLOGY (not inclusive): 
 - STRUCTURAL: sick sinus, AV block, ischemia,
and Management Algorithm ... sick sinus, AV block ... LIFE THREATENING CAUSES ... Electrolytes (hyperkalemia ... #Bradycardia #Algorithm
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... : • MOA: Block ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Hypokalemia Differential ... Diagnosis Algorithm ... amzn.to/2LmUODZ #Hypokalemia ... Differential #Diagnosis #Algorithm ... #Causes #Classification
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
Diagnostic Approach to Hyperkalemia ... inhibitors Other causes ... NSAlDs - Beta-Blockers ... #Hyperkalemia ... #Algorithm #diagnosis
Emergent Hyperkalemia Treatment Algorithm
ECG changes, weakness, K+ >6.5 Or renal insufficiency with K >5.5 with cellular
Emergent Hyperkalemia ... Treatment Algorithm ... waves, prolonged PR ... bradycardia, AV blocks ... #Treatment #Algorithm