This Lead II rhythm strip is from a nine-year-old girl being monitored for an outpatient surgical procedure. She has no known heart disease. Her heart rate is 110 per minute. The PR interval is .12 seconds (120 ms), the QRS is upright and narrow at .06 seconds (60 ms), and the rhythm is regular.
Low atrial rhythm
This Lead II rhythm strip shows a regular rhythm with narrow QRS complexes and retrograde P waves. The strip was taken from a nine-year-old girl. The rate is about 110 per minute and the PR interval is .12 seconds (120 ms).
This ECG, taken from a nine-year-old girl, shows a regular rhythm with a narrow QRS and an unusual P wave axis. Unfortunately, we do not have any clinical information.
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