12 results
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
EKG in Acute Pulmonary ... Arrhythmia* (e.g ... • Dominant R Wave ... Changes • STE in aVR ... diagnosis #cardiology #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
the presence of AV ... Wandering Atrial ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... Acute myocardial ... Subepicardial atrial ... of arrhythmia: ... #electrocardiogram
Multifocal Atrial Arrhythmias on ECG
Multifocal atrial rhythm & Multifocal atrial tachycardia
ECG Recognition:
 • Variable P wave
Arrhythmias on ... cardiology #diagnosis #ekg ... #electrocardiogram ... #clinical #comparison ... #Arrhythmias
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(3) SVTs - atrial ... (3) Multifocal atrial ... 3 different P waves ... #EKG #diagnosis ... #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
the presence of AV ... Wandering Atrial ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram ... variants #clinical #comparison
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
women • DDx: Acute ... leads with STE in avR ... inversion - STE avR ... #EKG #diagnosis ... #electrocardiogram
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
J point • De Winter ... ST elevation in aVR ... deviation) • Acute ... #EKG #diagnosis ... differential #cardiology #electrocardiogram
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
, longer, longer ... independently of the atria ... heartblock #cardiology #ecg ... #ekg #diagnosis ... #electrocardiogram
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Brady Management ... P and QRS • Atrial ... • Block in AV ... summary #Diagnosis #EKG ... #electrocardiogram