A key first-trimester ultrasound examination for the early assessment of fetal development and the risk of chromosomal abnormalities.
What Is the Nuchal Translucency Scan?
- The Nuchal Translucency (NT) Scan is one of the most important prenatal ultrasound examinations and is performed between 11 and 13+6 weeks of pregnancy.
- It is a cornerstone of first-trimester screening, helping assess the risk of chromosomal abnormalities, including Down syndrome, while also evaluating the early development and anatomy of the fetus.
- The examination is recommended for all pregnancies as part of routine prenatal care.
What Is Assessed?
The ultrasound findings are combined with maternal age and, when appropriate, maternal blood test results to provide a more accurate individualized risk assessment.
What Does the Examination Show?
- Assesses the likelihood of chromosomal abnormalities, such as Down syndrome
- Helps identify certain structural or anatomical abnormalities at an early stage
- Evaluates normal fetal growth and development
- Guides recommendations for further prenatal testing when necessary
In the case of an abnormal result, confirmation with invasive prenatal diagnostic testing is required.
Results & Clinical Guidance
Frequently Asked Questions
If the nuchal translucency measurement is increased, does it mean there is definitely a problem?
Not necessarily. An increased measurement indicates a higher risk, not a diagnosis. Further evaluation is usually recommended to clarify the findings.
Is the examination recommended for all pregnancies?
Yes. The Nuchal Translucency Scan is a fundamental part of first-trimester prenatal screening and is recommended for all pregnant women.
Can the NT scan diagnose Down syndrome?
No. The examination estimates the risk of chromosomal abnormalities but cannot provide a definitive diagnosis.
Is the scan painful or dangerous for the baby?
No. It is a safe, non-invasive ultrasound examination with no known risk to either the mother or the fetus.
Should it be combined with NIPT?
In selected cases, NIPT may be recommended as a complementary test to improve the accuracy of prenatal screening.
Early assessment provides reassurance, guidance, and informed decision-making from the very beginning of pregnancy.
