AV-Block zweiten Grades
Über den Vortrag
Der Vortrag „AV-Block zweiten Grades“ von Joseph Alpert, MD ist Bestandteil des Kurses „Interpretation des Elektrokardiogramms (EKG)“.
Quiz zum Vortrag
What best describes a second-degree Mobitz type I block (Wenckebach Phenomenon)?
- Progressive lengthening of the PR interval until a beat is dropped
- Consistently prolonged PR interval (> 200 ms)
- Dropped beats that are not preceded by a change in the length of the PR interval
- P waves and QRS complexes that are not rhythmically associated
- Abnormally fast accessory conduction pathway from the atria to ventricles that bypasses the AV node
Where is the block of the electrical transmission in second-degree Mobitz 1 AV block?
- In the upper portion of the AV node
- In the upper portion of the SA node
- In the Purkinje fibers
- In the bundle of His
- In the bundle of Kent
Which of the following best describes a second-degree Mobitz type 2 AV block?
- Dropped beats that are not preceded by a change in the length of the PR interval
- Progressive lengthening of the PR interval until a beat is dropped
- Consistently prolonged PR interval (> 200 ms)
- P waves and QRS complexes that are not rhythmically associated
- Abnormally fast accessory conduction pathway from the atria to ventricles that bypasses the AV node
Which of the following is true regarding a Mobitz type 1 AV block?
- The last P wave is not followed by the QRS complex.
- It is characterized by a progressive increase of a QR interval.
- It typically requires pacemaker therapy.
- It can rapidly progress to third-degree heart block.
- It often leads to complete dissociation between the atria and ventricles.
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Dozent des Vortrages AV-Block zweiten Grades
Joseph Alpert, MD
Dr. Joseph Alpert is the Professor of Medicine in the Department of Medicine, Director of Coronary Care and Medical Director of Cardiac Rehabilitation at the University of Arizona (UA) College of Medicine, USA.
He obtained his Medical Degree cum laude from Harvard Medical School in 1969. Currently, he is a member of the Board of Trustees of the Association of Professors of Medicine, and Editor-in-Chief of The American Journal of Medicine.
Due to his achievements, he earned the Gifted Teacher Award from the American College of Cardiology in 2004.
Within Lecturio, Dr. Alpert teaches courses on Cardiology and the Cardiac System.
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