12 results
Counterclockwise and (Left) vs Clockwise (Right) Flutter
Typical atrial flutter is counterclockwise in direction and originates from
and originates from ... flutter from the ... appearance on ECG ... #Diagnosis #ECG ... #EKG #Cardiology
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
• Caused by atrial ... dissociation + retrograde atrial ... activation from ... SVT (e.g., junctional ... #diagnosis #cardiology
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... junction origin (e.g ... (e.g. ectopic atrial ... @AmyChung #EKG ... Interpretation #ECG
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
as they result from ... Serial EKGS in pts ... Wellens #Sign #EKG ... #ECG #Electrocardiogram ... #Diagnosis #Cardiology
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
In AVNRT, the atria ... EKG of the same ... #AVNRT #PhysicalExam ... #JVP #Cardiology ... #Neck #Frog #Sign
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
junctional tachy not from ... 3 different P waves ... bradyarrhythmia #ECG ... #EKG #diagnosis ... electrocardiogram #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... aVR • Classic EKG ... #AVR #leadAVR #ecg ... #ekg #differential ... #cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Equivalents on ECG ... indistinguishable from ... #Equivalents #ECG ... #EKG #diagnosis ... #differential #cardiology
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
your R is far from ... 200 msec) • P wave ... independently of the atria ... heart #heartblock #cardiology ... #ecg #ekg #diagnosis
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
arrhythmia syndromes (e.g ... 300 = NSVT EKG ... capture of the atria ... arrhythmia • Atrial ... #differential #cardiology