6 results
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... Atrial flutter • AV ... nodal reentrant ... tachycardia • AV ... #cardiology
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Nodal Reentrant ... ECG usually shows ... #Nodal #Reentrant ... Pathophysiology #cardiology ... #SVT
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
vs SVT (AVNRT, ... • Tx: Vagal maneuvers ... abnormality • Beware AV ... nodal blockers ... #cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Syndrome (SSS) • AV ... node: AV re-entrant ... nodal re-entrant ... Differential #Diagnosis #Causes ... #cardiology
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
- Decreases AV ... nodal conduction ... Uses: - Atrial ... : - Scooping ST ... #Cardiology #Digitalis
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Attempt vagal maneuvers ... Control rate with AV ... nodal blocking ... Treat underlying cause ... Treatment #management #cardiology