Fetal ultrasound screening

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Anatomy survey 18-20 wks – if normal decreases age related risk by 50%

Early 11-14 wk U/S – measure nuchal translucency

NT screen identifies 75% T21

Cardiac defects Intracranial malformations oNTD - anencephaly/encephalocele Abd wall defect- gastroschisis/omphalocele Renal abN Skin / Limb malformations