How can I tell if I have AFib or flutter?

In atrial fibrillation, the atria beat irregularly. In atrial flutter, the atria beat regularly, but faster than usual and more often than the ventricles , so you may have four atrial beats to every one ventricular beat.

The main danger with atrial flutter is that your heart doesn’t pump blood very well when it beats too fast . Vital organs like the heart muscle and brain may not get enough blood, which can cause them to fail. Congestive heart failure, heart attack, and stroke can result.29 May 2020

Conclusion: In certain patients, the occurrence of transient, simultaneous atrial fibrillation and flutter is possible .