The below ECG strip shows the irregularly irregular QRS complexes present during atrial fibrillation. Using the first method to determine heart rate would not be accurate because the RR intervals ...

The ECG strip below shows normal sinus rhythm, then atrial fibrillation with a rapid ventricular response develops. With the faster heart rate, the QRS complex morphology changes to that of a LBBB.

In this review, the authors discuss the role of ECG in prediction of ... 65 years on a 2-min rhythm strip 1.5- to 2.5-fold increase Hypertension, paroxysmal AF, autonomic dysfunction, inflammation ...

ECG Challenge: Sudden Palpitations and Shortness of Breath A 56-year-old patient with cardiomyopathy lands in the emergency department with shortness of breath and a rapid heart rate. What does ...

In patients with symptoms such as irregular heartbeats, dizziness, or fainting, or in individuals that physicians suspect may have atrial fibrillation ... selected ECG strips, but also what ...