A person with a heart rate of 170 bpm and a normal QRS duration would most likely be experiencing a

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Quizplus · Accepted Answer

A heart rate of 170 bpm indicates a fast heart rate, which is likely to be originating from the atria. The normal QRS duration means that the impulse is likely traveling through the normal conduction pathway and not the bundle branches or Purkinje fibers. Therefore, the most likely cause of the fast heart rate would be a tachydysrhythmia originating from the atria.

A Person with a Heart Rate of 170 Bpm and a Normal