Ultrasound estimated fetal weight less than 10th percentile or birth weight less than 3rd percentile for gestational age
Symmetric:
Onset: 1st trimester
Cause: chromosomal abnormalities; congenital infection
Sx: global growth lag
Asymmetric:
Onset: 2nd/3rd trimester
Cause: uteroplacental insufficiency, maternal malnutrition
Sx: head-sparing growth lag
Tx for both:
Regular nonstress testing
Weekly biophysical profiles
Serial umbilical artery Doppler sonography
Serial growth ultrasounds
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