Which is true of ventricular fibrillation?
A) It is absence of heart contractions.
B) It is a type of heart block with impaired conduction of the impulse.
C) It is a cardiac arrhythmia marked by rapid,uncoordinated contractions.
D) It is an electronic apparatus used to shock the heart.

Question

Quizplus · Accepted Answer

Ventricular fibrillation is a type of cardiac arrhythmia characterized by rapid, uncoordinated contractions of the heart's ventricles. It can lead to cardiac arrest and death if not quickly treated with defibrillation.

Options A, B, and D are incorrect:
A) It is actually a type of exaggerated heart contraction caused by abnormal electrical impulses, rather than the absence of contractions.
B) Heart block is a separate type of arrhythmia caused by a delay or interruption in the normal electrical signal moving through the heart.
D) An electronic apparatus used to shock the heart is called a defibrillator, which is used to treat ventricular fibrillation, not a characteristic of it.

Which Is True of Ventricular Fibrillation