Aneuploidy and fetal testing Flashcards
1
Q
Risk of Down’s by 30y/o
A
1 in 1000
2
Q
Risk of Down’s by 35y/o
A
1 in 365
3
Q
Risk of Down’s by 40y/o
A
1 in 100
4
Q
Risk of Down’s by 45y/o
A
1 in 36
5
Q
Risk of any chromosomal abnormality by 30y/o
A
1 in 500
6
Q
Risk of any chromosomal abnormality by 35y/o
A
1 in 180
7
Q
Risk of any chromosomal abnormality by 40y/o
A
1 in 50
8
Q
Risk of any chromosomal abnormality by 45y/o
A
1 in 18
9
Q
What gestational age should nuchal translucency be performed?
A
11w0d to 13w6d
10
Q
Optimal gestation ago for imaging of nuchal translucency
A
12 weeks
11
Q
Nuchal translucency measurement that warrants further evaluation
A
> 3mm
12
Q
What is associated w nuchal translucency abnormalities?
A
Trisomy 18 and 21
Congenital Heart Disease/Cardiac Malformation
