The formula for exponential growth of a variable x at the (positive or negative) growth rate r, as time t goes on in discrete intervals (that is, at integer times 0, 1, 2, 3, ...), is. where x0 is the value of x at time 0.
Ventricular fibrillation is disorderly and irregular electrical activity in the heartâs ventricles. A heart affected by VFib âflutters.â These rapid beats prevent the heart from pumping adequate amounts of blood into the body. VFib is an emergency situation.
Ventricular Flutter. Ventricular flutter is a tachycardia with a rate over 200 beats per minute. The ECG looks like a sine wave without any clear definition of the P, QRS and T waves. In many cases, it would transition into ventricular fibrillation after a short time and can result in sudden death.