Supraventricular Tachycardia EKG Here’s a great ECG case of a 50-year-old lady who presented with palpitations Her heart rate is around 255 bpm! Is it wide or narrow complex? The computer thinks it’s wide, probably because it has trouble distinguishing QRS from T wave in some leads! But you can see that the QRS complexes are clearly narrow. This rhythm is all consistent with SVT! - Sam Ghali, M.D. @EM_RESUS #AVRT #SVT #Supraventricular #Tachycardia #EKG #ECG #Electrocardiogram #Cardiology #EKG #Clinical