Placental/Uterine Conditions
Placenta Previa
Late preterm / early term
36.0 - 37.6
Cholestasis of Pregnancy (bile acids 100+)
Late Preterm
36.0
Gestational, Diet-Controlled
Full Term
39.0 - 40.6
EFW 3rd - 10th percentile with no concurrent findings
Early term / Full term
38.0 - 39.0
Uncomplicated Di-Di Twins
Early term
38.0 - 38.6
Vasa Previa
Late preterm / Early Term
34.0 - 37.0
Cholestasis of Pregnancy (Bile acids <100)
Late Preterm - Full Term
36.0 - 39.0
Gestational, well-controlled on meds
Full Term
39.0 - 39.6
Concurrent conditions (oligohydramnios, maternal comorbidities [eg preeclampsia, diabetes])
Late preterm / Early Term
34.0 - 37.6
Uncomplicated Mo-Di Twins
Late Preterm / Early Term
34.0 - 37.6
Placenta Accreta Spectrum
Late preterm
34.0 - 35.6
Oligohydramnios
Late Preterm / Early Term
36.0 - 37.6
Pregestational, Well-controlled
Full Term
39.0 - 39.6
EFW <3rd percentile with no concurrent findings
OR elevated UA dopplers with preserved end diastolic flow
Early term
37.0
Uncomplicated Mo-Mo Twins
Preterm / Late Preterm
32.0 - 34.0
Prior classical cesarean section OR previous uterine rupture
36.0 - 37.0
HIV
Viral Load >1000: 38.0 by cesarean
Viral Load </= 1000 on ART: 39.0+
Pregestational, with vascular complications, poor glucose control, or prior stillbirth
Late Preterm / Early Term
36.0 - 38.6
Absent end diastolic flow on UA dopplers
Preterm / Late preterm
33.0 - 34.0
Di Di Twins with Isolated FGR
Late Preterm / Early Term
36.0 - 37.6
Prior myomectomy/uterine surgery requiring cesarean delivery
Early term
37.0 - 38.6
Alloimmunization
Not requiring fetal blood transfusion: 37.0 - 38.6
Requiring blood transfusion: late preterm / early term **individualized
Gestational, Poorly Controlled
Late Preterm / Early Term
**Individualized
UA dopplers with reversed end diastolic flow
Preterm
30.0 - 32.0
Mo Di Twins with Isolated FGR
Preterm / Late Preterm
32.0 - 34.6