gestational age assessment (ultrasound in pregnancy)

Last reviewed 01/2018

  • gestational age assessment:
    • pregnant women should be offered an early ultrasound scan between 10 weeks 0 days and 13 weeks 6 days to determine gestational age and to detect multiple pregnancies. This will ensure consistency of gestational age assessment and reduce the incidence of induction of labour for prolonged pregnancy
    • crown-rump length measurement should be used to determine gestational age
      • if the crown-rump length is above 84 mm, the gestational age should be estimated using head circumference

Reference:

Related pages:

obstetric ultrasound

ultrasound in the diagnosis of pregnancy