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Review Question - QID 213483

Electrocardiogram (ECG) ECG And Conduction Pathway QID: 213483 (M1.OMB.19.1)
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QID 213483 (Type "213483" in App Search)
A cardiologist is studying how a new virus that infects the heart affects the electrical conduction system of the cardiac myocytes. He decides to obtain electrocardiograms on patients with this disease in order to see how the wave patterns and durations change over time. While studying these records, he asks a medical student who is working with him to interpret the traces. Specifically, he asks her to identify the part that represents initial ventricular depolarization. Which of the following characteristics is most consistent with this feature of the electrocardiogram?
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