Module 17 - Nuchal Translucency Flashcards
1
Q
When can a nuchal translucency be done in weeks?
A
11 weeks to 13 6/7 weeks
2
Q
When is a nuchal translucency done in CRL?
A
45mm-84mm
3
Q
Why end at 13 6/7weeks?
A
Nuchal fluid can decrease after 14 weeks
4
Q
What are the 5 criteria for performing a nuchal translucency?
A
- Magnification
- Position
- Amnion
- Measurement area
- Caliper placement
5
Q
What is proper caliper placement?
A
On to on
6
Q
What is generally considered to be a normal NT measurement?
A
<3.5mm 93%
<2.7 97%
