19 results
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram ... (EKG) Digoxin ... waves - Short QT ... interval Dr. ... #EKG #Cardiology
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
complex (PAC) - ECG ... look like the sinus ... will have a PR interval ... #complexes #cardiology ... #ecg #electrocardiogram
Electrocardiographic Features of Digoxin Toxicity
 • Virtually any arrhythmia is possible. None specific for digoxin toxicity
Shortening of QT ... interval • "Scooped ... digitalis #Toxicity #Electrocardiogram ... #ekg #ecg #toxicology ... #cardiology #diagnosis
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Syndrome (runs ... 1º - long PR intervals ... bradyarrhythmia #ECG ... #electrocardiogram ... #cardiology #differential
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
P wave and PR interval ... Wandering Atrial ... #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
(e.g. ectopic atrial ... /QTC Interval: ... Interpretation #ECG ... #Electrocardiogram ... #cardiology #diagnosis
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
P wave and PR interval ... Wandering Atrial ... #Arrhythmia #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram
Wolff-Parkinson-White Syndrome

WPW is a congenital abnormality characterized by an abnormal accessory conduction pathway between the atria
Wolff-Parkinson-White Syndrome ... pathway between the atria ... and widened QRS interval ... WolffParkinsonWhite #WPW #Cardiology ... #ECG #EKG #Electrocardiogram
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
(<60 bpm) • Sinus ... Syndrome • SA ... ) • Sinus ... setting of long QT ... tachyarrhythmias #Cardiology
Ectopic atrial rhythm
 • The atrial rate is less than 100 bpm.
 • PR interval within
• PR interval ... P wave during sinus ... #rhythm #cardiology ... #diagnosis #ekg ... #ecg #electrocardiogram