With atrial tachycardia the P'R interval can be shorter than normal if the ectopic site is closer to the AV node.
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Q10: When a P' follows the QRS complex
Q11: The most common cause of longer than
Q12: The P'R intervals may vary from beat
Q13: The PR intervals get progressively longer in:
A)
Q14: The PR intervals are not measurable in:
A)
Q15: With 3rd-degree AV heart block the PR
Q16: With atrial fibrillation the PR intervals are:
A)
Q17: With 2nd-degree AV heart block, Type II,
Q18: The PR interval denotes depolarization of the
Q20: 1st-degree AV heart block can occur with
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