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Flashcards in Foetal Growth And Development Deck (19):
1

Duration of pregancy dating

Last menstrual period

Uterine size - symphysis fundal height

Developmental criteria- biomarkers, biometrics (head circumference vs abdomen, amniotic volume) ultrasound

2

How to measure fundal height

Consent, Dignity
Not lying flat (supine hypotension)
Locate top if the fundus to pubic symphysis
Share with woman, record and plot

3

Current average birth weight

7.5lb, 3.2kg

4

What are the landmarks of the gravid uterus in each trimester?

End of 1st trimester - lifts out of the pelvis
2nd trimester - umbilicus
3rd trimester - xiphisternum

5

Markers of fundal height

1cm per week of pregnancy

6

Sources of error in fundal height

Bladder
Multiple pregnancy
Incorrect dating
Fibroids

7

Foetal distress

Acute distress in Iabour

8

Foetal compromise

Health of the baby in utero is compromised.

9

Biophysical growth measurements

Ultrasound scan
Cardiotocograph

B - breathing
A - amniotic fluid
T - tone
H - heart rate
M - movements

10

When are foetal movements felt?

Detected at 8 weeks

Felt at 18-20 weeks

11

Why is monitoring foetal movements is important

Change in foetal movements can indicate development.

Increase with growth
Decrease can indicate compromise

12

Ultrasound scanning in pregnancy

12 weeks, dating or viability scan
20 weeks is an anomaly scan

13

Preterm babies are small and physiologically immature. Which organ needs to be managed and why?

Lung

14

Drugs used to prevent labour

Tocolytics

Allows administration if corticosteroids to accelerate foetal lung maturity
(And transfer to a suitable unit)

15

IUGR

2 main types:

Asymmetrical - head sparing, most commonly extrinsic factors later in pregnancy. Loss of abdominal fat.

Symmetrical - undernourished, genetic

16

Causes of asymmetrical IUGR

Placental insufficiency
Smoking
Pre-eclampsia

17

Birthweights of a large, small and average baby

Average 3.2kg
Large: over 4.5kg
Small: under 2.5kg

18

When is the period of most foetal growth?

third trimester, between 20-40weeks (300g-3kg)

19

Name 4 factors that have an impact on foetal growth

pre-eclampsia
trauma
maternal nutrition
multiple pregnancy
smoking
alcohol/drugs

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