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Week 2 Topic 2 DQ 1

Topic 2 DQ 1

Q The stroke volume ejected on the next heartbeat after premature ventricular contraction (PVC) is usually larger than normal. Explain why this is the case. (HINT: It should be noted that at a given heart rate, the interval between a PVC and the next normal beat is longer than the interval between two normal beats.)

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Premature ventricular contraction is the most common cause of irregular heart rate rhythms . In this type of contraction the heart rate is irregular and it is not synchronous with the normal heart beta.