10 results
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
Degree AV Block ... with prolonged PR ... with progressive PR ... independently of the atria leading ... heartblock #cardiology #ecg
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Block in AV ... beyond AV node) ... HeartBlocks #Types #Classification ... summary #Diagnosis #EKG ... electrocardiogram #ecg
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
(AV blocks) - ECG ... • PR interval ... There is constant PR ... • The PR interval ... electrocardiogram #classification
Diastolic Function Grading - Schematic diastolic filling patterns

I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III:
Diastolic Function Grading ... moderate diastolic dysfunction ... LV compliance), ECG ... #Grading #Classification ... Grades #Criteria #Table
Compelling and Possible Contraindications to Antihypertensive Drugs
Diuretics (thiazides)
 - Gout
 - Metabolic syndrome, Glucose intolerance, Pregnancy,
diltiazem) - AV ... Pgp-dependent drugs (e.g ... - Asthma, AV ... - Depression, AV ... contraindications #table
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... depolarization • ↑ PR ... interval to prolong AV ... velocity) - ↑ PR ... #Pharmacology #Classification
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Differential Diagnosis by Classification ... Sinus pauses • AV ... block - Tachyarrhythmias ... Differential #Diagnosis #Classification ... #Table #Causes
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Treatment of Stable ... Control rate with AV ... Control rate (e.g ... Control rate (e.g ... management #cardiology #algorithm
Emergent Hyperkalemia Treatment Algorithm
ECG changes, weakness, K+ >6.5 Or renal insufficiency with K >5.5 with cellular
ECG changes, weakness ... injury, etc) ECG ... waves, prolonged PR ... , bradycardia, AV ... blocks) -> Calcium
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
Treatment of Stable ... WPW) - Avoid AV ... nodal agents (e.g ... diltiazem or B-blockers ... management #cardiology #algorithm