6: Problems in pregnancy - small for dates Flashcards Preview

Reproduction Week 3 2018/19 > 6: Problems in pregnancy - small for dates > Flashcards

Flashcards in 6: Problems in pregnancy - small for dates Deck (26)
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1

For what three reasons may a baby be born small?

Pre-term delivery

Intrauterine growth restriction

Constitutionally small

2

The earlier in gestation a woman gives birth, the ___ ___ their baby is to survive.

earlier = less likely to survive

3

Which growth centile must a foetus be under to be called small for gestational age?

10th centile

4

Which measurement can be taken on examination to track foetal growth?

Fundus-symphysial height

5

What measurements can be taken on foetal ultrasound to track foetal growth?

Abdominal circumference

Femur length

6

If a baby is small for gestational age, by which point should it ideally be delivered?

37 weeks

7

Pre-term delivery is also known as ___.

prematurity

8

Pre-term delivery is the birth of a child before which point in gestation?

Week 37

9

What can trigger pre-term delivery?

Illness e.g infection

Over-distension e.g multiple pregnancy, polyhydramnios

Vascular disease - placental abruption

Trauma

10

What measurements can be taken to estimate the growth of a foetus?

Fundal height

Estimated foetal weight

On USS: abdominal circumference, femur length

11

What is the definition of a low birth weight?

< 2.5kg at any point in gestation

12

Intrauterine growth restriction can be ___ or ___.

symmetrical or asymmetrical

symmetrical - genetic disorders

asymmetrical - placental problems

13

Which imaging is used to measure foetal growth during pregnancy?

Ultrasound

14

Which foetal ultrasound measurements are used to estimate foetal weight?

Abdominal circumference

+/- Femur length

15

Which specific ultrasound scans are used if poor foetal growth is suspected?

Uterine artery doppler

MCA scan

16

What underlying disease causes placental infarction and abruption?

Maternal hypertension

17

What are some maternal reasons for intra-uterine growth restriction?

Lifestyle factors - smoking, alcohol, drug use

Co-morbidities e.g hypertension

Extremes of age

18

What are some foetal reasons for intra-uterine growth restriction?

Infection e.g toxoplasmosis, CMV

Congenital abnormalities

Genetic disorders e.g trisomy 21

19

What are some placental reasons for intra-uterine growth restriction?

All related to hypertension - infarction, abruption, insufficiency

20

What are the findings of poor foetal growth on examination?

Reduced fundal height

Reduced liquour

Reduced foetal movements

21

What are some types of doppler ultrasound scan used in the assessment of foetal wellbeing?

Uterine artery doppler

Umbilical artery doppler

MCA scan

22

If a baby is small for dates, when should it be delivered?

Week 37

23

Which drugs can be used to help deliver small-for-dates babies?

Steroids - speeds up production of pulmonary surfactant

Magnesium sulphate - for neuroprotection

24

What is the purpose of steroids in premature delivery?

Increases lung development (production of pulmonary surfactant)

25

What is the purpose of magnesium sulphate in premature delivery?

Neuroprotection

26

If a small-for-dates pregnancy is showing signs of static growth or their scans are dodgy, what is indicated?

Caesarean delivery

no matter the gestation