The most effective way to end ventricular fibrillation is

defibrillation

Explanation:Defibrillation is a technique used in emergency situations It makes use of electrical shock to reset or regulate the electrical state of the heart so that it may beat according to its own natural pacemaker cells regulation.

VENTRICULAR FIBRILLATION IS A MEDICAL CONDITION THAT CAUSES THE HEARTH RHYTHM TO BE ABNORMAL,IT IS CHARACTERIZED BY A RAPID AND ERRATIC ELECTRICAL IMPUSES.

DEFIBRILLATION

Explanation: Ventricular fibrillation can be defined as a condition where the cardiac muscle is contracted irregularly and rapidly.

The best way to end ventricular fibrillation is by defibrillation which is the stopping of the fibrillation of the heart in order to restore normal contractions, especially by the use of an electric shock with an equipment known as a defibrillator and electrode pads adhered to the chest.

The most commonly used test is the PCR test.

The other commonly used testing method is CRISPR testing.