Amniotic Fluid, fetal anomalies Flashcards
1
Q
Rough US measurement of amniotic fluid volume obtained by measuring the vertical diameter of the deepest pockets of fluid in the 4 quadrants of the uterus and adding these values together
A
Amniotic fluid index
2
Q
Normal value of amniotic fluid index
A
5-20 cm
3
Q
Refers to normal echolucent space between the spine and overlying skin at the back of fetal neck
A
Nuchal translucency
4
Q
Nuchal translucency is measured by
A
Width between inner borders of nuchal translucency
5
Q
Nuchal translucency cut off at first trimester
A
2.5 mm or 3.0 mm
6
Q
In 2nd trimester, nuchal thickness ____ is abnormal
A
> /= 6 mm