Assertion: ventricular fibrillation | /r/Causes | cardiac arrest.﻿﻿
Facets:
value: during ventricular fibrillation
type: TEMPORAL
Source sentences:
text: Ventricular fibrillation is a form of heart rhythm disturbance (dysrhythmia) that causes cardiac arrest.﻿﻿ During ventricular fibrillation, the heart stops beating normally and simply begins quivering uncontrollably.