Source-described AV nodal re-entry tachycardia
MSP221 recording · 10
The source describes a 51-year-old woman; no presenting complaint is given.
Original waveform retained; quiz cropping only removes off-tracing interpretation or a row containing an answer label. Some sources are rhythm strips rather than a full 12-lead ECG.
Look for
- Regular narrow-QRS tachycardia.
- Small retrograde P waves near the QRS, described by the source.
Where to look. Rapid regular narrow-QRS rhythm; small retrograde P waves may be close to the QRS.
In typical AVNRT, atrial and ventricular activation are nearly simultaneous. A narrow QRS without visible P waves is insufficient to confirm the mechanism.
The source diagnosis is retained; no additional clinical cause is inferred.
References & provenance
John Hampton; David Adlam. The ECG Made Practical, 7th ed. (2019), ch. 4, pages du PDF / PDF pp. 121.
Ewingdo. ECG of a 51-year-old female with AV nodal reentrant tachycardia (AVNRT). Note small retrograde P waves after the QRS. Heart rate 181 bpm, QT/QTc 258/448 ms. https://commons.wikimedia.org/wiki/File:ECG_AVNRT_181_bpm.jpg. CC BY-SA 4.0. Adaptation: lossless metadata removal/encoding; quiz crop removes off-tracing labels/interpretive panels where applicable. Derivative image retains the same license. CC BY-SA 4.0
Adaptation: cropping and removal of headers/annotations outside the tracing where applicable; metadata removed. Waveforms have not been redrawn.
Compared with the published source; no independent clinical validation is claimed.
Original annotations & limitations
ECG of a 51-year-old female with AV nodal reentrant tachycardia (AVNRT). Note small retrograde P waves after the QRS. Heart rate 181 bpm, QT/QTc 258/448 ms
ECG of a 51-year-old female with AV nodal reentrant tachycardia (AVNRT). Note small retrograde P waves after the QRS. Heart rate 181 bpm, QT/QTc 258/448 ms
Original source labels retained. Question wording limited to visible findings; no independent clinical validation claimed.