Module 1 - GAP Theory
Module 2 - GAP Practice

4.6 Doppler

Doppler flow measurements are an essential part of growth surveillance, where indicated 17

  1. Uterine artery Doppler (UtAD) in high risk pregnancy, 20-23 weeks
  2. Umbilical artery Doppler (UAD)  if suspected SGA or FGR in 3rd Trimester
  3. UAD, UtAD, MCA/CPR to assess severity of SGA at term and help determine time of delivery 

See GAP Guidance17 , Section 3.6.


17. GAP Guidance. Perinatal Institute 2020. https://www.perinatal.org.uk/GAPguidance.pdf