I have A Fib. What should I do when my heart begins to race?

Individuals with atrial fibrillation have concerns often as to what to do if they develop the heart fast rhythm that comes with atrial fibrillation. A racing heartbeat does need medical attention, particularly if the heart rates exceed 120 beats-per-minute for more than an hour or so. If this condition occurs, you should contact your physician, so that medications or interventions may be arranged to slow the heart rate down or restore a normal rhythm.