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wrote...
Posts: 119
A week ago
Third-degree AV block has

▸ a constant PR interval.

▸ a varying R-R interval.

▸ one P wave to each QRS.

▸ a varying PR interval.
Source  Download
EKG Plain and Simple
Edition: 4th
Author:
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1 Reply
all is normal
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wrote...
Posts: 106
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A week ago
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a varying PR interval.
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