Hormones vary: The BHCG hormone levels vary widely from person to person. An isolated BHCG level can not be used to determine fetal viability. A fetal heart beat should be visible on transvaginal sonogram by 6-7 weeks if the gestational dates are correct.
Answered 12/27/2019
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The increase in HCG: levels, rather than the absolute value, better reflects the health of a pregnancy. At six weeks, normal HCG levels can range from 1080 to 56,500, A heartbeat can be detected as early as 6 weeks gestation. It might not be heard, but rather seen as a very tiny image of a beating heart. Hope this answers your question. Dr. Anne..
Answered 5/26/2016
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