PMC7364267_01
Daily clozapine dose optimizations and heart rate.
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fig1
Subsequently, we noticed a dose-dependent relationship of tachycardia as the patient's clozapine dosage was titrated as shown in Figure 1.
EKG showing sinus tachycardia and right bundle branch block.
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fig2
His EKG was notable for a ventricular rate of 116 bpm, atrial rate 116 bpm, PR interval 136 ms, QRS duration 136 ms, and QTc interval of 503 ms with an overall impression of sinus tachycardia, intermediate axis, and right bundle branch block (see Figure 2).