11 results
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Summary of Heart Blocks ... 1st Degree Heart Block ... • Prolonged PR ... HeartBlocks #Types #Classification ... Diagnosis #EKG #electrocardiogram
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
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
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... There is constant PR ... • The PR interval ... ecg #diagnosis #electrocardiogram ... #classification
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... • 2° Block Type ... • 3° Complete Block ... AmyChung #EKG #Interpretation ... #ECG #Electrocardiogram
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Intervals - PR ... ) - HiPR: AV block ... EKG #diagnosis #electrocardiogram ... #cardiology #interpretation
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Pericarditis: PR ... - Concurrent PR ... wave in aVR • Classic ... criteria only looks ... #leadAVR #ecg #electrocardiogram
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... not in aVL • PR-segment ... Bundle Branch Block ... bundle-branch block ... cardiology #ecg #ekg #electrocardiogram
This infographic provides a mnemonic tool called “WOBBLER” for assessing an ECG (electrocardiogram) in cases of
assessing an ECG (electrocardiogram ... ) in cases of syncope ... evaluate potential causes ... ECG Section: P, PR ... , thorough ECG interpretation
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Pragmatic diagnostic algorithm ... angiotensin receptor blockers ... continued in most cases ... ; interpretation ... #differential #algorithm