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【Bodily Changes During Pregnancy】Heartbeat And Blood Volume During

【Bodily Changes During Pregnancy】Heartbeat and blood volume during pregnancy
During the second trimester of pregnancy, the mother’s heart at rest is working 30 to 50 percentTrusted Source harder. Most of this increase results from a more efficiently performing heart, which ejects more blood at each beat. Heart rate may increase up to 15 to 20 percent during pregnancy. It’s not uncommon to approach 90 to 100 beats per minute in the third trimester. Blood volume increases progressively during pregnancy until the last month. The volume of plasma increases 40-50 percent and red blood cell mass 20-30 percent, creating a need for increased iron and folic acid intake.


Please consult your healthcare provider for more information.

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