What is the most common mechanism involved in clinically important cardiac arrhythmias?
a. Triggered activity
b. Abnormal automaticity
c. Reentry
d. Early afterdepolarizations
e. Parasystole
Answer c:
Reentry is the most common mechanism underlying cardiac tachyarrhythmias, including AVNRT, atrial flutter, AVRT with an accessory pathway, and VT in a diseased heart.
a. Triggered activity
b. Abnormal automaticity
c. Reentry
d. Early afterdepolarizations
e. Parasystole
Answer c:
Reentry is the most common mechanism underlying cardiac tachyarrhythmias, including AVNRT, atrial flutter, AVRT with an accessory pathway, and VT in a diseased heart.
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Radiology