Normal Range for NT Scan at 12 Weeks Pregnant

Posted on: May 20, 2025 | 3 mins | Written by: HDFC ERGO Team

Normal Range for NT Scan at 12 Weeks Pregnant

Pregnancy is a special time filled with excitement, changes and regular check-ups to make sure both you and your baby are healthy. As part of this journey, doctors perform a few early scans to keep an eye on how your baby is developing. One of these is the NT scan, or Nuchal Translucency scan, which measures a small fluid space at the back of the baby’s neck. However, the scan doesn't mean anything is wrong. It is simply a way to check for any early signs of certain conditions so that parents and doctors can plan ahead if needed. If you are wondering what the normal range for NT scan is, this article will walk you through it.

Understanding NT Scan

Nuchal Translucency (NT) is a simple ultrasound done in the first trimester to measure the fluid present at the back of a baby’s neck. While a small amount of fluid is normal, an excess of it could indicate the foetus has a genetic or chromosomal condition like Down syndrome or a heart defect. The scan gives an early look at your baby’s growth and helps spot any signs that might point to certain health conditions. If something unusual appears, your doctor may recommend a few more tests to be sure.

Normal Range for NT Scan at 12 Weeks

The normal range for NT scan at 12 weeks is between 1.2 mm and 2.5 mm.

An NT measurement of 3.0 mm at 12 weeks is slightly higher than average and falls between the 95th and 99th percentiles. This means there is a small increase in the chance of conditions like chromosomal, heart or other health problems. However, it is important to remember that about 93 out of 100 babies with this measurement are born healthy, and only about 7 out of 100 may have a condition.

Conclusion

If the NT scan measurement is higher than normal, it could mean there is a slightly higher chance of certain health conditions, but most babies in this range are still healthy. Also note that the NT scan is just a screening test and not a diagnosis. It helps your doctor decide if more testing is needed to get a clearer idea of your baby’s health.

Many insurance providers include NT scans as part of maternity or prenatal care. However, the coverage can vary based on the specific policy. Therefore, it is advisable to check with your insurance provider to confirm if the NT scan and other prenatal tests are covered under your health insurance plan. If your policy covers these tests, it can ease your financial burden and give you peace of mind knowing that your prenatal care is well-supported.

Disclaimer: The above information is for illustrative purposes only. For more details, please refer to the policy wordings and prospectus before concluding the sales.

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