Question

Based on the provided ECG description (Ventricular Fibrillation), which of the following statements is correct?

A) There are no discernible P waves, and the QRS complexes are not applicable (n/a), indicating chaotic and irregular electrical activity in the heart.

B) The P wave is present, but there are no QRS complexes following the P waves, indicating atrial fibrillation.

C) The PR interval is unable to be determined, suggesting a potential conduction abnormality.

D) The rhythm is regular, and the rate is unable to be determined due to the chaotic nature of ventricular fibrillation.

Answer 1

The correct statement regarding an ECG showing Ventricular Fibrillation is that no discernible P waves or QRS complexes are present, which indicates chaotic and irregular electrical activity in the heart.

Step-by-step explanation:

Based on the provided ECG description of Ventricular Fibrillation (VF), the correct statement is that there are no discernible P waves, and the QRS complexes are not applicable (n/a), indicating chaotic and irregular electrical activity in the heart. During ventricular fibrillation, the normal sequence of electrical impulses within the heart is completely erratic, leading to a lack of coordinated contractions and the inability for the heart to pump blood effectively.

In VF, the P waves that represent atrial depolarization are not visible, since the electrical activity at the ventricle level is disorganized. Similarly, the QRS complexes, which represent ventricular depolarization, are not recognizable either. The electrical activity on the ECG is irregular and rapid, with no identifiable P waves, QRS complexes, or T waves.