Umbilical Artery Doppler

Perform when Gestational Age (GA) is greater than 24 weeks and:

1. Abdominal Circumference (AC) < 10th percentile

OR

2. Estimated Fetal weight (EFW) < 10th percentile

Call to the referring provider is required for all patients with AC or EFW <10th percentile. In addition, absent or reversed diastolic flow is a critical finding which may have time sensitive management implications. These should be reported as “Absent diastolic flow” or “Reversed diastolic flow” rather than using a resistive index number or percentile.

File:Umbilical artery Doppler.pdf

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