Why is defibrillation so important to a patient with either pulseless ventricular tachycardia or ventricular​ fibrillation?
A. Defibrillation works most effectively if the heart has not cooled down from the cardiac arrest.
B. Defibrillation causes a sustained contraction of the myocardium to promote blood flow from the ventricles.
C. Defibrillation will help to maintain a systolic blood pressure during the first moments of cardiac arrest.
D. Defibrillation has been shown to be the most effective emergency care to terminate the dysrhythmia.