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.
A ventricular septal defect (VSD) is a birth defect of the heart in which there is a hole in the wall (septum) that separates the two lower chambers (ventricles) of the heart.This wall also is called the ventricular septum. Inlet Ventricular Septal Defect This is a hole in the septum near to where the blood enters the ventricles through the tricuspid and mitral valves. 2  This type of ventricular septal defect also might be part of another heart defect called an atrioventricular septal defect (AVSD).