Fig. 2
The 2nd EKG after infusion of sodium bicarbonate. revealed a QRS duration of 200 ms (wide complex tachycardia), QTc of 500 ms (> 430 ms), and R/S ratio of 1/6 (> 0.7 in lead aVR); ST/T wave changes were also observed in the chest leads
Fig. 2 | International Journal of Emergency Medicine