2415 results
Limb Lead Reversal
In order to understand why the leads look the way they do, we must
As for the aVL/aVF ... remember that aVL ... /aVF/aVR are all ... Cardiology #ECG #EKG #LimbLeads ... #aVR #aVF
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Anatomical Differential ... Syndrome (SSS) • AV ... Fibrillation (AF ... node: AV re-entrant ... Arrhythmias #Anatomical #Differential
Normal Sinus Rhythm - ECG Diagnosis
Normal sinus rhythm (NSR) is an impulse that originates in the
leads I, II and aVF ... • inverted in aVR ... leads III and aVL
Pulsating Neck AV Fistula on Physical Exam
40 year old female patient, prior history of CKD on
Pulsating Neck AV ... Typically AV fistulas ... of congenital AVFs ... jugular #carotid #AVF
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Myocardial infarction localization. A 12 lead EKG creates a 360 degree view of the electrical activity
perspective: II, III & aVL ... inferior leads), I & aVL ... as you can see aVR ... contiguous lead (aVR ... contiguous I, aVL
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... PR elevation in aVR ... PR elevation in aVR ... ST elevation: Differential ... diagnosis #ekg #differential
Left Anterior Fascicular Block on EKG
 • Left axis deviation (LAD) (-45 degrees to -90 degrees)
in leads I and aVL ... leads II, Ill, aVF
Upper and Lower Causes of GI Bleed
Upper:
 • Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis,
Variceal, Cancer, AVM ... PUD, Duodenitis, AVM ... Polyps • Vessels: AVM ... Lower #GIBleed #differential
Differential Diagnosis: Cyanosis - Mnemonic "COLD PALMS"
Peripheral cyanosis 
• Cold 
• Obstruction 
• LVF and shock
Differential Diagnosis ... Obstruction • LVF
Knuckle Sign on ECG - Acute Pericarditis

Electrocardiogram of a 68-year-old woman two days after coronary artery
depression in aVR ... depression in I, II and aVL ... knuckle’ sign) in aVR