Atrial fibrillation is characterized by which of the following?

Prepare for the Physical Rehabilitation Test. Study using flashcards and multiple-choice questions. Each question has hints and explanations. Get ready for your exam!

Multiple Choice

Atrial fibrillation is characterized by which of the following?

Explanation:
In atrial fibrillation, the atria fire electrical impulses in a chaotic, disorganized way, so they lose the coordinated squeeze. The atrial rate becomes very fast and irregular, and because the AV node only partially filters these impulses, the ventricles respond in a variable, often rapid manner. That combination—rapid, irregular atrial activity with a ventricles’ response that is out of sync—describes an “irregularly quickly” atrial beat that is not in sync with the ventricles. The other patterns don’t fit: normal rhythm has the atria and ventricles beating together in a regular pattern, and AFib specifically involves rapid, irregular atrial activity that disrupts coordination with the ventricles.

In atrial fibrillation, the atria fire electrical impulses in a chaotic, disorganized way, so they lose the coordinated squeeze. The atrial rate becomes very fast and irregular, and because the AV node only partially filters these impulses, the ventricles respond in a variable, often rapid manner. That combination—rapid, irregular atrial activity with a ventricles’ response that is out of sync—describes an “irregularly quickly” atrial beat that is not in sync with the ventricles. The other patterns don’t fit: normal rhythm has the atria and ventricles beating together in a regular pattern, and AFib specifically involves rapid, irregular atrial activity that disrupts coordination with the ventricles.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy