Which of the following is a normal PR interval value?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the EPU Electrophysiology Exam with comprehensive questions and explanations. Enhance your knowledge with flashcards and a variety of question formats to ensure you are prepared to excel!

Multiple Choice

Which of the following is a normal PR interval value?

Explanation:
The PR interval represents the time from the start of atrial depolarization to the start of ventricular depolarization. A healthy range is 120 to 200 milliseconds (about 0.12–0.20 seconds). This window reflects normal AV node conduction from the atria to the ventricles. Among the given options, the one that falls in this normal range is 120–200 ms. Values that are shorter (like 20–40 ms) are too quick and can indicate pre-excitation or unusually fast conduction, while values that are longer (such as 300–400 ms) suggest some degree of AV block. A range like 60–90 ms is also below normal.

The PR interval represents the time from the start of atrial depolarization to the start of ventricular depolarization. A healthy range is 120 to 200 milliseconds (about 0.12–0.20 seconds). This window reflects normal AV node conduction from the atria to the ventricles.

Among the given options, the one that falls in this normal range is 120–200 ms. Values that are shorter (like 20–40 ms) are too quick and can indicate pre-excitation or unusually fast conduction, while values that are longer (such as 300–400 ms) suggest some degree of AV block. A range like 60–90 ms is also below normal.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy