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 Septal Defect. A ventricular septal defect (VSD) is a hole in the part of the septum that separates the ventricles. (The ventricles are the lower chambers of the heart.). A VSD allows oxygen-rich blood to flow from the left ventricle into the right ventricle, instead of flowing into the aorta as it should.entricular Septal Defect. A ventricular septal defect (VSD) is a hole in the part of the septum that separates the ventricles. (The ventricles are the lower chambers of the heart.). A VSD allows oxygen-rich blood to flow from the left ventricle into the right ventricle, instead of flowing into the aorta as it should.