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wrote...
Posts: 131
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2 months ago
Normal QRS intervals should be

▸ less than 0.12 seconds wide.

▸ less than 0.20 seconds wide.

▸ between 0.12 and 0.20 seconds wide.

▸ alternately narrow and wide.
Source  Download
EKG Plain and Simple
Edition: 4th
Author:
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Answer verified by a subject expert
wrote...
Posts: 220
2 months ago
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less than 0.12 seconds wide.
1
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wrote...
2 months ago
Good timing, thanks!
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