35 results
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... • Slows sinus rate ... VaughanWilliams #Classification ... #Classes #cardiology ... #pharmacology
Shock Classification Types - Pathophysiology Comparison

Obstructive Shock:
 • Obstructive shock is characterized by a blockage in
Shock Classification ... Types - Pathophysiology ... in blood flow caused ... Depends on the cause ... #Shock #Types #Pathophysiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... Cheat Sheet 1) Rate ... in leads V1-3 (Right ... proportional to heart rate ... @AmyChung #EKG
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... 0 to decrease rate ... Vaughan #Williams #Pharmacology ... #Classification ... #Classes #pathophysiology
The JT Interval and Pro-Arrhythmic Risk
Measured from the J-point to the end of the T-wave, the
- Right Bundle Branch ... with QRS ≥120 ms ... electrocardiogram #pathophysiology ... #ekg #ecg #cardiology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
• Syphilis (light-near ... dissociation) • Pharmacologic ... (e.g Opioids, Alcohol ... • Botulism Pharmacologic ... Diagnosis #Algorithm #Causes
Chest Pain / ACS Evaluation Algorithm
Algorithm that attempts to the use history taking (guided by LRs),
Diamond-Forrester classification ... Ask about: - Changes ... physical activity - Nausea ... - History - EKG
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Lung Abscess Pathophysiology ... degrees • Chills, night ... CXR upright or lat ... • Vasculitis (e.g
Subtrochanteric Femur Fracture: Pathogenesis and clinical findings
 • Subtrochanteric region spans 5 cm distally from the
fractures in elderly Causes ... to the femur ( e.g ... Femur #Fractures #msk ... #differential #causes ... #pathophysiology
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Antiarrhythmics Pharmacology ... Vaughan Williams Classification ... Antiarrhythmics #Pharmacology ... #Classification ... #Classes #pathophysiology