Summary: (Hbm3106) Reproductive And Developmental Biology

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  • 5 Modern Obstetrics

    This is a preview. There are 36 more flashcards available for chapter 5
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  • What are the 4 aspects of foetal health that modern obstetrics allow doctors to monitor?

    Foetal heart rate, urine, blood acidity, oxygen and uterine contractions of the mother
  • What are the 3 groups that modern obstetric tests fall into?

    Foetal heart rate monitoring
    ultrasound foetal heart rate monitoring 
    Foetal blood sampling
  • Foetal Heart Rate Monitoring encompasses 2 monitoring techniques. What are they called and what are their subgroups if they have any?

    Auscultation
    Cardiotocography (CTG) → External EFM & Internal EFM
  • What are the names of the 4 Ultrasound based Foetal heart rate monitoring techniques?

    Biophysical profile
    Foetal growth assessment
    Vascular doppler studies
    Amniotic fluid volume
  • How do you conduct auscultation fetal heart rate monitoring and by which gestational stage is it common practice to routinely do an auscultation?

    Place a doppler transducer on the abdominal wall of the mother to pick up the sound of the fetus heart
    From 20 weeks
  • Which specific 5 instances in time does the doctor want to record with the doppler transducer when conducting an auscultation?

    60s during contraction
    30s after contraction
    15-30 mins in the 1st ½ of labour
    5 mins in the 2nd ½ of labour
  • Cardiotocography (CTG) picks up the baby heart rate response to what event?

    Uterine contractions, to see how the baby's heart responds to the physical stress of each contraction
  • What are the components to an internal and external EFM CTG’s and how are they conducted?

    Components to an internal EFM = electrodes & internal pressure catheter
    Internal EFM process = records FHR via ECG from foetal scalp electrodes, Internal pressure catheter indicates strength of contractions + timing
    Components to an external EFM = ultrasound transducer & pressure sensitive toco transducer 
    External EFM process = ultrasound transducer placed on maternal abdomen measures baby heart rate, tocotransducer placed on the fundus picks up timing of uterine contractions not strength

  • When is it suitable to do internal and external EFM CTG’s and what is the special condition for internal EFM and why?

    External and Internal = ante-natally & in labour
    But for internal the cervix has to be dilated > than 2-3cm and membranes have to be erupted because electrodes will be placed on baby's head
  • In what two instances (one setup and one unfortunate) can CTG give off wrong results

    Electrodes placed on cervix
    Baby has died
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