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Fetal heart rates - early pregnancy
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topazorchid posted:
Can anyone post some links to a reference site that lists "normal fetal heart rate ranges" in early pregnancy? ie: 6 weeks normal range 7 weeks normal range 8 weeks normal range etc... I Googled it and I cant find any sites that are research or fact-based, and I would really like to know. Thanks for your help!
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jlb319 responded:
Your best bet might be to do a poll! :smile: So I'll tell you mine and HTH :grin: 6wks 2 days 136 BMP
 
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Robin0816 responded:
Mine at 5 weeks 4 days was 120
 
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Phair07 responded:
I had my first ultrasound today...11 weeks 3 days ~ 170
 
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Jle21 responded:
b Embryonic heart rate in the early first trimester: what rate is normal? i P. M. Doubilet and C. B. Benson i Department of Radiology, Harvard Medical School, Boston, Massachusetts, USA. Embryonic heart rates below 90 beats per minute at 6 to 8 weeks of gestation have been shown to be associated with a high likelihood of subsequent first trimester demise. The boundary between slow and normal heart rates has not been established, however, in that previous studies do not identify the heart rate for each gestational age at which prognosis plateaus. We evaluated sonograms of singleton pregnancies at 6 to 8 weeks to determine the relationship between heart rate and first trimester outcome in four gestational age subgroups: or = 100 beats per minute. At 6.3-7.0 weeks, prognosis improved up to 120 beats per minute, then plateaued. Heart rate norms could not be established at 7.1-8.0 weeks because of the small number of embryonic or fetal deaths in this age group; however, all embryos with heart rates below 110 beats per minute at 7.1-8.0 weeks died. We conclude that the lower limit of normal is 100 beats per minute up to 6.2 weeks' gestation and 120 bpm at 6.3-7.0 weeks. _________________________________ Here is a link to a graph not associated with the article posted above: www.io.com/~dubose/ehr-crl.gif
 
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Jle21 responded:
To answer the poll part... my DS's HR was 103BPM at 6w3ish days. My current cashew's HR was 178BPM at 8w4d.
 
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jeriannnibert responded:
My 8 week appt the HB was 151
 
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Qnscheme responded:
6W3D-120..hoping for higher next visit


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