Question: what is the difference between fine and coarse ventricular fibrillation?
Answer: Ventricular fibrillation (VF) is a chaotic rhythm that originates in the ventricles (the lower chambers of the heart). ... Ventricular fibrillation with waves that are 3 or more mm high is called "coarse" VF. Ventricular fibrillation with low amplitude waves (less than 3 mm) is called "fine" VF.