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- From: garvin+@cs.cmu.edu (Susan Garvin)
- Subject: Re: Fetal Heartbeat (Re: Supreme Court)
- Message-ID: <1992Jul22.005707.193912@cs.cmu.edu>
- Date: Wed, 22 Jul 92 00:57:07 GMT
- Organization: School of Computer Science, Carnegie Mellon
- Nntp-Posting-Host: satan.cimds.ri.cmu.edu
- References: <1992Jul21.004136.9063@murdoch.acc.Virginia.EDU> <1992Jul21.163226.12832@wuecl.wustl.edu> <1992Jul21.190634.5054@murdoch.acc.Virginia.EDU>
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-
- The following quote is from Dr. Len Howard, posted here recently.
-
- "According to the 17th edition of Williams Obstetrics, one of the three
- positive signs of pregnancy is identification of the fetal heart
- action separately and distinctly from that of the woman. The three
- methods of identification of fetal heart rate are auscultation with a
- fetoscope, by use of the dopler principle with ultrasound, and by the
- use of sonography. The heart beat of the fetus can be detected by
- auscultation with a stethoscope by 17 weeks gestation, on average, and
- by 19 weeks in almost all pregnancies. Fetal cardiac action can be
- detected with appropriate doppler equipment almost always by the 10th
- to 12th week of gestation. Echocardiography can be used to detect
- fetal heart action as early as 48 days after the first day of the last
- menstrual period. Real time sonography can be used to detect fetal
- heart action and fetal movement after the second month of pregnancy."
-
- Susan
-