Complete the following ECG criteria for AV nodal reentrant tachycardia (AVNRT):
Rhythm __________________________
Rate __________________________
P waves __________________________
PR interval __________________________
QRS duration __________________________
Fill in the blanks with correct word
Rhythm Ventricular rhythm is usually very regular.
Rate 150 to 250 beats/min (usually 180 to 200 beats/min in adults).
P waves P waves are often hidden in the QRS complex. If the ventricles are stimulated first and then the atria, a negative (inverted) P wave will appear after the QRS in leads II, III, and aVF. When the atria are depolarized after the ventricles, the P wave typically distorts the end of the QRS complex.
PR interval P waves are not seen before the QRS complex, therefore the PR interval is not measurable.
QRS duration 0.11 seconds or less unless abnormally conducted.
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