Final answer:
Verapamil is the antiarrhythmic drug with the shortest duration of action that is administered IV in the emergency treatment of supraventricular tachycardia.
Step-by-step explanation:
The antiarrhythmic drug with the shortest duration of action that is administered IV in the emergency treatment of supraventricular tachycardia is verapamil. In emergency situations, drugs such as lidocaine, amiodarone, verapamil, and digoxin are often used to treat cardiac arrhythmias. However, of these four options, verapamil has the shortest duration of action and is often administered intravenously. Notably, verapamil is a calcium channel blocker that works by reducing the heart's demand for oxygen and relaxing the blood vessels. It's vital to know that the response to these medications can vary greatly among patients, and therefore they should be administered under careful monitoring.
Learn more about Antiarrhythmic drugs