Look at the rhythm strip in lead V1 and you will intermittently see P waves prior the QRS complexes. March them out to see even more that are consistent. Also, the R-S is about exactly 100 ms in ...

Bigeminy is an irregular heart rhythm where every normal beat is followed by an abnormal one, often due to premature ventricular contractions (PVCs). It can feel like skipped or extra beats ...