How is the NT scan performed?
Oct 29, 2023
Source: Cainiu Health
Dr. Zhao Xiaodong
Introduction
NT scan is a common prenatal screening method that primarily uses abdominal ultrasound to measure the thickness of the fetal nuchal translucency, thereby assessing the risk of chromosomal abnormalities in the fetus. This procedure requires professional expertise. If this examination is needed, it is recommended to go to a正规 hospital and undergo the scan under the guidance of a qualified physician to ensure the accuracy of the results.
Generally, NT screening is a common prenatal test that primarily uses abdominal ultrasound to measure the thickness of the fetal nuchal translucency, helping to assess whether the fetus may have chromosomal abnormalities. The specific procedure is as follows:
1. Choose an appropriate time for the examination, usually between 11 and 14 weeks of pregnancy.
2. The pregnant woman lies flat on the examination table while an abdominal ultrasound is performed to determine the exact position of the fetus.
3. The operator uses an ultrasound probe to measure the thickness of the nuchal translucency at the back of the fetal neck and records the results.
4. Based on the measured nuchal thickness and other data, the fetal NT value is calculated. If the NT value exceeds 2.5 mm, it indicates an abnormal result, and a re-evaluation is recommended.
This procedure requires professional expertise. If this examination is needed, it is advisable to visit a正规 hospital and undergo the test under the guidance of a qualified physician to ensure accurate results. Additionally, maintaining healthy lifestyle habits and ensuring adequate nutrition intake can support fetal health.
