A patient presents to the emergency department with palpitations, light-headedness, and a rapid pulse. On the monitor, you observe a narrow-complex tachycardia with no discernible P waves and a ventricular rate of 180 bpm. The patient is hemodynamically stable. What is the most appropriate initial intervention for this rhythm?
Administer intravenous amiodarone over 10 minutes.
Administer intravenous adenosine rapidly followed by a saline flush.
Adenosine is often used as an initial intervention for stable patients with narrow-complex tachycardias, particularly when the rhythm is suspected to be supraventricular tachycardia (SVT). It can help to restore a normal heart rhythm by temporarily slowing down the heart. Synchronized cardioversion is typically reserved for patients who are hemodynamically unstable. Amiodarone is used for ventricular dysrhythmias or atrial fibrillation with a rapid ventricular response in certain cases, and atropine is used in the management of bradycardia, not tachycardia.
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BCEN CEN
Cardiovascular Emergencies
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