A device for ambulatory monitoring for suspected bradycardia or QT monitoring with simultaneous external pacing capability is provided. The device monitors the patient for a significant bradycardic episode and/or prolongation of the QT interval. The device provides a monitor having sensing, pacing, recording and transmission capabilities. At least two pacing electrodes are provided with adhesive backing for application to the anterior chest region with one cathode to the region of the cardiac apex and an anode to the region of the right upper sternal cardiac border. If a bradycardic episode is detected or prolongation of the QT is sufficient, then pacemaking energy is provided to the electrodes allowing the patient time to seek medical care without suffering the results of temporary hemodynamic instability that might otherwise be associated with dysrhythmia.