Patient's question:
Sure, here is the translation of the content you provided:```
No
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Doctor's answer:
During pregnancy, the maternal circulatory system undergoes a series of changes to adapt to the growth and development of the fetus. In the late stages of pregnancy, the total blood volume increases by 40% to 50% compared to non-pregnant levels, the heart rate increases by 10 to 15 beats per minute, and cardiac output increases by 25% to 30%. In other words, the workload of the heart is significantly greater than in non-pregnant conditions.