20 results
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... EKG findings: Sinus ... , AVRT, atrial tachycardia ... #AVR #leadAVR #ecg ... #diagnosis #ekg
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
(EKG) Digoxin ... - Decreases AV ... Digoxin effect on ECG ... #EKG #Cardiology ... #Digitalis #ECG
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Visual Guide to AV ... Pathophysiology - Dual AV ... stays inside the AV ... ECG usually shows ... Visualmedapp #AV
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
the atria and ventricles ... EKG of the same ... sign! ... #AVNRT #PhysicalExam ... #Sign
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
EKG Interpretation ... interval < 120 ms = AV ... (e.g. ectopic atrial ... @AmyChung #EKG ... Interpretation #ECG
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
• Inverted P waves ... maybe mistaken as AV ... Customary to call AV ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
Cannon A Waves
 • Caused by atrial contracting against a closed tricuspid valve
 • Atrioventricular dissociation
• Caused by atrial ... , it indicates AV ... dissociation + retrograde atrial ... activation from ... SVT (e.g., junctional
Supraventricular Tachycardia EKG

Here’s a great ECG case of a 50-year-old lady who presented with palpitations

Her heart
Here’s a great ECG ... distinguishing QRS from ... @EM_RESUS #AVRT ... #ECG #Electrocardiogram ... #Cardiology #EKG
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
Wellens' Sign: LAD-T ... as they result from ... Serial EKGS in pts ... #Wellens #Sign # ... EKG #ECG #Electrocardiogram
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
rhythms (5) AV ... QRS - Proximal AV ... block (lower AV ... bradyarrhythmia #ECG ... #EKG #diagnosis