A 35-year-old female asked:
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when during pregnancy does blood volume increase? can this cause a pregnancy heart murmur?

1 doctor answer
Dr. Steven Neish
37 years experience Pediatric Cardiology
2nd trimester: Most of the blood volume changes occur during the second trimester and continue until 34-36 weeks. Along with blood volume increases, there is a rise in cardiac output. With the rise in cardiac output, the presence of a heart murmur is common. Heart murmur does not necessarily indicate the presence of heart disease, and most pregnant women with a heart murmur have a normal heart.
Answered on Aug 5, 2014
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