Flashcards in Small & Large For Dates Deck (50)
Give a differential for LFD
What is the definition of macrosomia?
Estimated fetus weight EFW >90th centile
(on customised growth chart)
What is the commonest pathological cause of macrosomia?
What are the risks of macrosomia?
Labour complications eg >PPH, >shoulder dystocia
What is the definition of low birth weight?
Birth wt <2.5kg regardless of gestation
What is more common, monozygotic or dizygotic twins
What causes dizygotisity?
2 ova + 2 sperm
What causes monozygosity?
1 fertilised egg splits
What does DCDA stand for and what does it mean?
2 placentas, 2 amniotic cavities
(MCMA just 1)
What type of twins are always DCDA?
Are monozygotic twins DCDA, MCDA, MCDA or DCDA?
Can be any
How many days post fertilisation would a fertilised egg split to produce DCDA monozygotic twins?
How many days post fertilisation would a fertilised egg split to produce MCDA monozygotic twins?
How many days post fertilisation would a fertilised egg split to produce MCMA monozygotic twins?
What happens if a fertilised egg splits >15 days post fertilisation?
The normal S+S of pregnancy, such as hyperemesis, are increased in multiple pregnancy. T or F.
In multiple pregnancy, if one of the babies is breech, a caesarian is indicated. T or F
False, only if both babies breech
Multiple pregnancy is more common in [old/young] and [multi/nulliparous] mums
(Also more common in ACT and +ve FH)
At what antenatal visit is multiple pregnancy confirmed?
12 week scan
(can see chorionicity)
When should you aim to deliver DCDA monozygotic twins?
When should you aim to deliver MCDA monozyogtic twins?
In multiple pregnancy delivery, how quickly should you aim to deliver baby 2 after baby 1?
Less than 30min
(IJ synctocinon after baby 1)
All multiple pregnancies should be given low dose aspirin LDA as prophylaxis for PET. T or F
(also give Fe supplement)
What condition of the amniotic fluid is more common in multiple pregnancy?
What is oligohydramnios?
Insufficient / decreased amniotic fluid vol
What is polyhydramnios?
Excess amniotic fluid
Polyhydramnios can cause _____ membrane rupture.
What might be found on antenatal abdominal exam in polyhydramnios?
Tense shiny abdo
Hard to palpate baby
(also abdo discomfort and LFD)
An US AFI amniotic fluid index greater than 25 is indicative of _______