I was at the ER yesterday and was told that my EKG changed. Something about the QRS widening. What does that mean and how dangerous is it ? I have followed through with my Dr. via phone and he gave me the name of a cardiologist to see.
The parts of a QRS complexElectrocardiography (EKG, ECG) tracings show a characteristic pattern of electrical impulses that are generated by the heart. The QRS complex is a record of the measurement of the movement of electrical impulses through the lower heart chambers (ventricles), primarily in the Purkinje fibers
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