How to calculate ventricular rate in atrial fibrillation. Then count how many p waves are between the 30 large squares. There are two different rates that can be determined on an ecg. In patients with atrial fibrillation af the ventricular rate is determined in large part by the conduction properties of the atrioventricular av node.
Controlling ventricular rate during atrial fibrillation af has been shown to be as effective as anti arrhythmic pharmacologic therapies for af0102 in the absence of rhythm control strategies with long term efficacy rate control strategies have been considered as a reasonable option for managing patients with af0304 despite wide adoption of rate control therapy for af. Take that number and multiple it by 10 and this is your heart rate. The atrial rate is indicated by the frequency of the p waves.
The ventricular rate is indicated by the frequency of the qrs complexes.