Figure 1. ECG showing AVNRT at the time of presentation. Note electrical alterans indicated by red and blue arrows. Retrograde P waves are marked with black arrows

From

Atrioventricular Nodal Reentrant Tachycardia Triggered by Marijuana Use: A Case Report and Review of the Literature

Pramod Theetha Kariyanna, Apoorva Jayarangaiah, Oleg Yurevich, Jonathan Francois, Denis Yusupov, Angelina Zhyvotovska, Louis Salciccioli, Sudhanva Hegde, Samy I. McFarlane

American Journal of Medical Case Reports. 2019, 7(9), 193-196 doi:10.12691/ajmcr-7-9-3