Fetal growth, compromise and abnormal lie Flashcards Preview

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Flashcards in Fetal growth, compromise and abnormal lie Deck (11):
1

Define small for dates? (1)

Small for gestational age is when the weight of the fetus is less than the 10th centile for it's gestation.

2

Define IUGR. (1)

Intrauterine growth restriction is when a fetus has failed to meet it's growth potential, it implies compromise.

3

Define a prolonged pregnancy. (1)

Pregnancy over 42 weeks gestation.

4

What is the management of a SGD fetus? (1)

Monitor growth. No intervention if consistent and umbilical artery doppler normal.

5

What is the management of IUGR pregnancy? (2)

From 36 weeks: deliver
34-36 weeks: regular umbilical artery doppler; daily CTG, consider delivery
<34 weeks: Give steroids and regular UA doppler, CTG.

6

Give 3 causes of IUGR. (3)

Maternal: hypertension, pre-eclampsia, diabetes, drug/alcohol abuse, smoking, renal disease, thrombophilia, increased maternal age
Fetal: chromosomal abnormalities, TORCH infection, multiple pregnancy
Other: placental insufficiency

7

What is the difference between symmetrical and asymmetrical IUGR? (2)

Symmetrical: head and body are proportionately small, normally early onset and seen in chromosomal abnormalities.
Asymmetrical: Typically later onset, abdominal circumference disproportionately smaller than head, seen with placental insufficiency.

8

Define an abnormal fetal lie. (2)

Lie of fetus is not parallel to long axis of uterus.
Can be transverse or oblique.

9

name 3 causes of oblique/transverse fetal lie. (3)

Preterm labour, polyhydramnios, multiparty, placenta praevia, multiple pregnancy, pelvic mass, fetal or uterine abnormality

10

How can a breech presentation be classified? (3)

Extended: both legs extended from knee (70%)
Flexed: both legs flexed at knee (15%)
Footling: oen or both feet are presenting below the buttocks (15%)

11

How can a breech presentation be managed? (2)

External cephalic version can be attempted from 37 weeks and has 50% success rate.
Caesarian section if failure.
Do not attempt if antepartum haemorrhage, ruptured membranes, fetal compromise or multiple pregnancy.