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  2. Cardiotocography - Wikipedia

    en.wikipedia.org/wiki/Cardiotocography

    A Zigzag pattern of fetal heart rate (FHR) is defined as FHR baseline amplitude changes of more than 25 beats per minute (bpm) with a minimum duration of 2 minutes and maximum of 30 minutes. [19] However, according to another study, even a >1 min duration of the zigzag pattern is associated with an increased risk of adverse neonatal outcomes ...

  3. Nonstress test - Wikipedia

    en.wikipedia.org/wiki/Nonstress_test

    A normal nonstress test will show a baseline fetal heart rate between 110 and 160 beats per minute with moderate variability (5- to 25-interbeat variability) and 2 qualifying accelerations in 20 minutes with no decelerations. "Reactive" is defined as the presence of two or more fetal heart rate accelerations within a 20-minute period. Each ...

  4. 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).

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

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  6. Contraction stress test - Wikipedia

    en.wikipedia.org/wiki/Contraction_stress_test

    During uterine contractions, fetal oxygenation is worsened. Late decelerations in fetal heart rate occurring during uterine contractions are associated with increased fetal death rate, growth retardation and neonatal depression. [1] [2] This test assesses fetal heart rate in response to uterine contractions via electronic fetal monitoring.

  7. Heart rate - Wikipedia

    en.wikipedia.org/wiki/Heart_rate

    Resting heart rate is often correlated with mortality. In the Copenhagen City Heart Study a heart rate of 65 bpm rather than 80 bpm was associated with 4.6 years longer life expectancy in men and 3.6 years in women. [27] Other studies have shown all-cause mortality is increased by 1.22 (hazard ratio) when heart rate exceeds 90 beats per minute. [7]

  8. Fetal scalp stimulation test - Wikipedia

    en.wikipedia.org/wiki/Fetal_scalp_stimulation_test

    A firm digital pressure on head or a gentle pinch of fetal head with atraumatic clamp is used for stimulation. An acceleration of the fetal heart rate of 15 bpm lasting at least 15 seconds is suggestive of normal fetal outcome.

  9. Heart development - Wikipedia

    en.wikipedia.org/wiki/Heart_development

    The embryonic heart rate (EHR) then accelerates linearly for the first month of beating, peaking at 165-185 BPM during the early 7th week, (early 9th week after the LMP). This acceleration is approximately 3.3 BPM per day, or about 10 BPM every three days, an increase of 100 BPM in the first month.