HEALTH & MEDICINE CALCULATOR
Nuchal Translucency Calculator
A precise tool.
What is the Nuchal Translucency Calculator & How does it work?
Nuchal translucency (NT) is a prenatal ultrasound measurement of the fluid-filled space at the back of the fetal neck. It is used to assess the risk of chromosomal abnormalities, particularly Down syndrome.
The NT measurement is typically taken between 11 and 14 weeks of gestation. A higher NT value may indicate an increased risk, but it does not confirm a diagnosis. Further testing such as amniocentesis or chorionic villus sampling (CVS) may be recommended.
NT text{ score} = frac{NT text{ measurement in mm}}{text{gestational age in weeks}}
NT = Nuchal Translucency measurement in millimeters
Gestational Age = Gestational age in weeks
Gestational Age = Gestational age in weeks
Parameters
Result
—
Frequently Asked Questions
What is nuchal translucency?
Nuchal translucency is a prenatal ultrasound measurement of the fluid-filled space at the back of the fetal neck, used to assess the risk of chromosomal abnormalities like Down syndrome.
When should nuchal translucency be measured?
Nuchal translucency is typically measured between 11 and 14 weeks of gestation.
What does a higher NT value indicate?
A higher NT value may indicate an increased risk of chromosomal abnormalities, but it does not confirm a diagnosis.
What further testing might be recommended after NT measurement?
Further testing such as amniocentesis or chorionic villus sampling (CVS) may be recommended if the NT score is higher than normal.
How is the NT score calculated?
The NT score is calculated by dividing the NT measurement in millimeters by the crown-rump length of the fetus.
Results are for informational purposes only and do not constitute professional advice.