Question

- irregular rhythm within normal rate range (atrial rate less than 100)

- characterized by 3 different, distinct forms of P waves

Answer 1

Atrial fibrillation is an irregular heart rhythm characterized by three different forms of P waves on an ECG. The electrical pattern before the QRS complex is abnormal, and the frequency between the QRS complexes has increased.

Step-by-step explanation:

Atrial fibrillation is a type of irregular heart rhythm that occurs when the atria, the upper chambers of the heart, beat at a rate less than 100 beats per minute. It is characterized by three different forms of P waves on an electrocardiogram (ECG). Each form represents the electrical activity of the atria during a heartbeat. In atrial fibrillation, the electrical pattern before the QRS complex is abnormal, and the frequency between the QRS complexes has increased. This condition is one of the common ECG abnormalities and is also known as a third-degree block.