Continuing down the scale ... ECG strip shows the irregularly irregular QRS complexes present during atrial fibrillation. Using the first method to determine heart rate would not be accurate ...

This means an ECG showing atrial fibrillation will have no visible P waves and an irregularly irregular QRS complex. The ventricular rate is frequently fast, unless the patient is on AV nodal ...

An irregular heartbeat, also known as arrhythmia, occurs when the heart beats too fast, too slow, or unevenly. It results from disruptions in the heart’s electrical signals While some irregular ...