1
Q
cavum septum pellucidi (CSP)
A
resolves 2 yrs after birth
2
Q
low maternal AFP levels
A
are assoc. with chromosomal abnormalities
3
Q
abdominal circumference
A
a better predictor of fetal growth
4
Q
biparietal diameter
A
a good predictor of gest. age up to 20 wks
5
Q
LVOT
A
ascending aorta (aortic valve) right atrium to left ventricle
6
Q
RVOT
A
pulmonary artery
left atrium to right ventricle
7
Q
cause for elevated maternal AFP levels
A
abd. wall defect underestimation of gest. age multifetal gestations open neural tube defects cystic hygroma fetal death
8
Q
choroid plexus cyst
A
normal finding that generally resolves by 25 wks. gest.
if they persist, it is a marker for trisomy 18
9
Q
renal pelvis measurement in a fetus
A
33 wks. gest. AP = 7mm
OB/GYN Board Review
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