Neo boreds maternal fetal medicine Flashcards
_____% of neonates born to women with MG will develop transient neonatal myasthenia Gravis. 90% of affected neonates completely recover by ___
10-20, 2 months of age
Intrauterine exposure to ____ in the first trimester can lead to a depressed nasal bridge, nasal hypoplasia, and stippled bone epiphyses.
Warfarin
A single umbilical artery occurs in ____% of the population
Less than 1 %
Fetus is hyper/hypo calcemic relative to mother?
Hypercalcemic
Choroid plexus cysts are detected by fetal US in ____% of fetuses
0.5
If the PH is ____ this suggested rupture of membranes
Greater than or equal to 6.5
In the setting of maternal ITP, significant neonatal thrombocytopenia (less than 50,000) occurs less than ____% of the time.
10%
True/False: Pregnant women with mumps have an increased risk of first trimester spontaneous abortion.
True
Which is the dominant thyroid hormone during fetal life?
Reverse triiodothyronine (T3)
High circulating levels of progesterone during pregnancy lead to maternal ____ventilation resulting in a partially compensated respiratory _____
Hyper, alkalosis
Can TSH cross the placenta?
No
Quadruple screen: low AFP, low uE3, high inhibit A and beta HCg increased risk if_____, beta hcg, low uE3, low AFP, normal inhibit A increased risk of _____.
Tri 21, Tri 18.
Category 3 tracing contains absent FHR baseline Variability AND
1) recurrent late decelerations
2) recurrent variable decelerations
3) bradycardia
Or sinusoidal pattern.
A systolic to diastolic ration of the UA greater than ____ is considered abnormal beyond 30 wks gestation.
3
Which can index can help determine asymmetric IUGR?
Ponderal Index: weight (g) x 100/ (crown-heel)^3
