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2. Doppler fetal monitor - Wikipedia

   en.wikipedia.org/wiki/Doppler_fetal_monitor

   A Doppler fetal monitor, informally known as sonicaid (generic trademark), is a hand-held ultrasound transducer used to detect the fetal heartbeat for prenatal care. It uses the Doppler effect to provide an audible simulation of the heart beat. Some models also display the heart rate in beats per minute (BPM).

3. Cardiotocography - Wikipedia

   en.wikipedia.org/wiki/Cardiotocography

   Cardiotocography sound Schematic explanation of cardiotocography: heart rate (A) is calculated from fetal heart motion determined by ultrasound, and uterine contractions are measured by a tocodynamometer (B). These numbers are represented on a time scale with the help of a running piece of paper, producing a graphical representation.

4. Prenatal testing - Wikipedia

   en.wikipedia.org/wiki/Prenatal_testing

   Additional ultrasounds may be performed if there are any other problems with the pregnancy, or if the pregnancy is post-due. First or second trimester Non-invasive Fetal heartbeat Listening to the fetal heartbeat via an external monitor placed on the outside of the abdomen. First or second trimester Non-invasive Non-stress test

5. 'Heartbeat bills': Is there a so-called fetal heartbeat at ...

   www.aol.com/news/heartbeat-bills-called-fetal...

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6. Obstetric ultrasonography - Wikipedia

   en.wikipedia.org/wiki/Obstetric_ultrasonography

   The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) recommends that pregnant women have routine obstetric ultrasounds between 18 weeks' and 22 weeks' gestational age (the anatomy scan) in order to confirm pregnancy dating, to measure the fetus so that growth abnormalities can be recognized quickly later in pregnancy ...

7. Nonstress test - Wikipedia

   en.wikipedia.org/wiki/Nonstress_test

   A nonstress test (NST) is a screening test used in pregnancy to assess fetal status by means of the fetal heart rate and its responsiveness. A cardiotocograph is used to monitor the fetal heart rate and presence or absence of uterine contractions. The test is typically termed "reactive" (also "reassuring") or "nonreactive" (also "nonreassuring ...