Which of the following describes two shockable heart rhythms?

The correct answer identifies ventricular tachycardia (V-tach) and ventricular fibrillation (V-fib) as two shockable heart rhythms. In the context of advanced cardiac life support (ACLS), these two rhythms are critical to recognize because they can lead to sudden cardiac arrest if not addressed promptly.

V-fib is characterized by chaotic electrical activity in the ventricles, which prevents them from effectively pumping blood and results in no heartbeat. V-tach, on the other hand, is a rapid heart rhythm originating from the ventricles, which can also compromise blood circulation. Both rhythms can be treated with defibrillation, a process that delivers an electric shock to the heart, with the goal of restoring a normal rhythm.

Recognizing these rhythm types is essential for healthcare providers, as immediate defibrillation can significantly increase the chances of survival in patients experiencing these life-threatening conditions. In contrast, the other options provided include rhythms that are not responsive to defibrillation and require different management strategies.