Look up Ectopic Heart Beats and PAC's (Premature Atrial Contractions). Atrial Bigeminy is when you get a PAC prior to every full HeartBeat. [
en.wikipedia.org]
PAC's can run every 2,3,4 or 5 beats and will also vary as in after 2 beats, then 4, then 5, then 2, and so forth. The regularity of the NSR beats are interrupted by the PAC's, which can feel similar to AFIB. Usually the overall HR increases more during AFIB, and HR will also have more variance during AFIB. For example when I have PAC's while still in NSR, my HR stays relatively normal around 70-80 bpm, whereas during AFIB, my HR varies from 70 to 120. Also the strength of the Beats should feel stronger by Finger/Pulse check than compared to AFIB, because the Atria is still contracting during PAC's verses when during AFIB, the Atria is Fibrillating.
Edited 1 time(s). Last edit at 05/07/2019 08:52AM by The Anti-Fib.