USMLE/COMLEX - Step 2 - Supraventricular tachycardia

USMLE/COMLEX - Step 2 - Supraventricular tachycardia Iatrogenic Wolf-Parkinson white syndrome Palpitations Dizziness Shortness of breath Chest pain Narrow QRS Absent P waves HR > 150/min If patient is unstable, synchronized electrical cardioversion If patient is stable, vagal maneuvers (Valsalva, carotid massage, or ALS) If patient is resistant, administer adenosine (If arrhythmia gets worse, think WPW) If patient is resistant, administer other AV-nodal blocking agents (CCBs or ?-blockers) if rhythm fails to convert