A condition in which the heart is contracting in an uncontrolled, rapid, and irregular manner is _______________
A)probably heart block.
B)probably fibrillation.
C)called tachycardia
D)called bradycardia.

Question

Quizplus · Accepted Answer

The description matches the characteristics of fibrillation, which is a rapid and irregular contraction of the heart muscles. Heart block refers to a disruption in the electrical signal that controls the heartbeat, while tachycardia and bradycardia refer to a heart rate that is too fast or too slow, respectively, but do not specify the irregular contraction pattern.

A Condition in Which the Heart Is Contracting in an Uncontrolled