Nuchal translucency screening is an ultrasound performed in the first trimester of pregnancy to measure the thickness of fluid behind the baby's neck. A normal measurement indicates a lower risk of chromosomal abnormalities, while an abnormal measurement adjusts the age-related risk higher. Additional tests of the mother's blood can further adjust the pregnancy risk level.

1. NUCHAL TRANSLUCENCY SCREENING Provided by A tlanta P erinatal A ssociates

2. “ Low Risk” “ High Risk”

3. WHAT IS AN NT?

4. NORMAL NT

5. ABNORMAL NT

6. NT Measurement Allows Adjustment in Age-Related Risk

7. Free Beta and PAPP-A Allow Further Adjustment in Risk PAPP-A FREE BETA

8. “ Low Risk” “ High Risk”

10. NT Measurement Allows Adjustment in Age-Related Risk