Answer ( 1 )

  1. Hello Dear,

    Thank you for writing to us at MediMetry.
    Between 5 to 9 weeks of gestation there is a rapid increase in the mean heart rate. Normal embryos start at under 85 beats per minute heart rate and it then increases from 110 to 175 beats per minutes (bpm) and stabilizes around 120-160 beats per minute.
    Hope this answers your query. Feel free to write back to us with follow-up questions.
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