Prenatal diagnosis Flashcards
1
Q
Down syndrome
A
Inc bHCG
Inc inhibin A
Dec AFP
Dec estriol
2
Q
Ultrasound: down syndrome
A
Increased nuchal translucency
3
Q
Most common trisomy in first trimester losses
A
Trisomy 16
4
Q
Most common trisomy at term
A
Trisomy 21
5
Q
The minimum amount of radiation exposure which may produce damage to the fetus in the first trimester of gestation is
A
150 rads
