19/11/2025
If following a lower risk fetal growth surveillance pathway - GAP guidance recommends SFH measurements commence from 26-28 weeks, 2-3 weekly until birth.
If suboptimal growth is suspected, direct referral for growth scan and/or Doppler is recommended, within 72 hours. If resources permit, a scan EFW should be repeated in 3 weeks’ time (no sooner than 2 weeks time) to ascertain velocity, as a single scan cannot provide reassurance about the growth trajectory of the fetus.
ℹ️For more information, see GAP guidance here:
https://perinatal.org.uk/what-is-gap.pdf