____ is the chaotic and asynchronous firing of multiple irritable ectopic foci.

Question

Quizplus · Accepted Answer

Ventricular fibrillation is characterized by multiple irritable foci firing asynchronously and chaotically, resulting in a quivering and ineffective pumping of the ventricles. Atrial fibrillation, on the other hand, is the chaotic firing of multiple irritable foci in the atria. Ventricular irritability is a general term for abnormal electrical activity in the ventricles, while atrial irritability refers to abnormal activity in the atria.

____ Is the Chaotic and Asynchronous Firing of Multiple Irritable