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Pediatric ECGs: Difference between revisions
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→Distinguishing tachyarrhythmias in infants
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| valign="top" | History | | valign="top" | '''History''' | ||
| valign="top" | Sepsis, fever, hypovolaemia, etc. | | valign="top" | Sepsis, fever, hypovolaemia, etc. | ||
| valign="top" | Usually otherwise normal | | valign="top" | Usually otherwise normal | ||
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| valign="top" | Rate | | valign="top" | '''Rate''' | ||
| valign="top" | Almost always <230 b/min | | valign="top" | Almost always <230 b/min | ||
| valign="top" | Most often 260–300 b/min | | valign="top" | Most often 260–300 b/min | ||
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| valign="top" | R-R interval variation | | valign="top" | '''R-R interval variation''' | ||
| valign="top" | Over several seconds may get faster and slower | | valign="top" | Over several seconds may get faster and slower | ||
| valign="top" | After first 10–20 beats, extremely regular | | valign="top" | After first 10–20 beats, extremely regular | ||
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| valign="top" | P wave axis | | valign="top" | '''P wave axis''' | ||
| valign="top" | Same as sinus almost always visible P waves | | valign="top" | Same as sinus almost always visible P waves | ||
| valign="top" | 60% visible P waves, P waves <em>do not</em> look like sinus P waves | | valign="top" | 60% visible P waves, P waves <em>do not</em> look like sinus P waves | ||
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| valign="top" | QRS | | valign="top" | '''QRS''' | ||
| valign="top" | Almost always same as slower sinus rhythm | | valign="top" | Almost always same as slower sinus rhythm | ||
| valign="top" | After first 10–20 beats, almost always same as sinus | | valign="top" | After first 10–20 beats, almost always same as sinus | ||