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Home Q & A Board Science-Related Homework Help Mathematics
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cristal13 cristal13
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9 years ago
when analyzing an electrocardiographic ecg rhythm strip of a patient with regular cardiac rhythm, the nurse finds there are 25 small blocks from one r wave to the next. the nurse calculates the patient's heart rate as?
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9 years ago
PR interval.

The PR interval represents depolarization of the atria, AV node, bundle of His, bundle branches, and the Purkinje fibers, up to the point of depolarization of the ventricular cells. The P wave represents atrial depolarization. The QRS represents ventricular depolarization. The QT interval represents depolarization of the depolarization and repolarization of the entire conduction system.
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