9 results
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Differential Diagnosis by Classification ... bradycardia • Sinus ... pauses • AV ... Differential #Diagnosis #Classification ... #Table #Causes
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... cells • Slows sinus ... rate and prolongs PR ... cells • Slow sinus ... #Classes #cardiology
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
RBBB/LBBB with syncope ... Class Ill: • Syncope ... unclear origin • Sinus ... arrest, prolonged PR ... • Reversible causes
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
DANGER (2) Sinus ... block 1º - long PR ... 200ms from longer pause ... successively longer PR ... EKG #diagnosis #electrocardiogram
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... : • Sick Sinus ... Tachy-Brady Syndrome #Syncope ... #causes
Causes of Syncope - Differential Diagnosis Algorithm
Cardiac - Arrhythmia:
 • Tachyarrhythmia
 • Bradyarrhythmia
 • Supraventricular Tachycardia
Causes of Syncope ... Differential Diagnosis Algorithm ... Tachycardia • Sick-Sinus ... Volume • Carotid Sinus ... #Causes
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
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; and sinus ... voltage Other Causes ... 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 ... pathway that can cause