36/40 - growth and wellbeing scan.
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AFI is increased at 29.2 cm (i.e. there is polyhydramnios). Umbilical artery Doppler is normal. Cervix measures 3.6 cm long and the internal os is closed.
There is a history of maternal gestational diabetes, managed on insulin. This is a known cause of polyhydramnios and accounts for the cause in this case.