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    Exam 19: The Electrocardiogram and Cardiac Arrhythmias In Adults
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    The PR Intervals Gradually Lengthen Until a QRS Complex Fails
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The PR Intervals Gradually Lengthen Until a QRS Complex Fails

Question 18

Question 18

Multiple Choice

The PR intervals gradually lengthen until a QRS complex fails to appear after the P wave in which type of AV block?


A) First-degree
B) Type I second-degree
C) Type II second-degree
D) Third-degree

Correct Answer:

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