What is an NT Scan?
Nuchal Translucency Scan or NT Scan is one of the vital pregnancy scans to monitor the fetus carefully. This Scan is carried out to assess the baby’s risk of having chromosomal abnormalities such as down syndrome and patau syndrome. It is usually done between 11 and 14 weeks of pregnancy.
NT Scan measures the nuchal fold thickness behind the baby’s neck. If the thickness is >3 mm, it means that the baby has higher risks of developing chromosomal abnormalities.
Why is NT Scan Important?
The NT Scan is done to check if the baby has chances of developing chromosomal abnormalities. Since the NT scan is performed between 11 and 14 weeks of pregnancy, it enables early detection of potential anomalies, allowing parents to make informed decisions. To improve the accuracy of the results, the NT scan is often combined with a blood test called the double marker test.
What does NT scan detect?
The NT (Nuchal Translucency) scan is performed to assess the baby’s risk of chromosomal abnormalities by measuring the fluid collection at the back of the baby’s neck. An increased nuchal fold thickness may indicate a higher risk of conditions such as Down syndrome and other chromosomal abnormalities.
What is the difference between NT scan and Double marker scan?
Aspect | NT Scan | Double Marker Test |
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Type of Test | Ultrasound | Blood test |
What It Measures | Nuchal fold thickness | Beta-hCG and PAPP-A |
Purpose | Assesses risk of chromosomal abnormalities | Further evaluates chromosomal risk |
When It’s Done | Between 11 to 14 weeks | Between 11 to 14 weeks |
Accuracy | 70% accurate on its own. | NT + Double Marker together offer up to 95% accuracy |
Recommended Together? | Yes | Yes |
The NT scan is an ultrasound test performed to measure the nuchal fold thickness to assess the baby’s risk of chromosomal abnormalities. On the other hand, the Double Marker test is a blood test that measures two main hormones, Beta-hCG and Pregnancy-Associated Plasma Protein-A (PAPP-A), to evaluate the risk further.
Healthcare experts often recommend both the NT scan and Double Marker tests together to enhance the accuracy of screening.
Is the NT scan 100% accurate?
While the NT scan alone is about 70% accurate in assessing a baby’s risk of chromosomal abnormalities, combining it with the Double Marker test can increase the accuracy up to 95%.
When is the best time to have a NT scan?
The ideal time for an NT scan is between 11 and 14 weeks of pregnancy, as early detection of any potential abnormalities can help expectant parents make informed decisions.
NT Scan Price in Chennai
How much does an NT scan cost in Chennai?
The cost of an NT scan in Chennai typically ranges between ₹2000 and ₹4000 depending on various factors which are listed in the table below.
Factors | Impact on Cost | Why Choose Jammi Scans |
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Qualification of the Doctor |
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Experience of the Doctor |
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Equipment Quality |
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Type of Scan |
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Type of Report |
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Counselling provided after the scan |
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Documents to Carry for NT Scan
- Doctor’s requisition: Carry your doctor’s requisition to ensure proper communication of any specific concerns you may have.
- Previous scan reports: If you are going for your NT scan, be sure to carry your early pregnancy scan report and other test reports to help the doctor understand your case better.
- Pregnancy file: Carry your pregnancy file, which contains all reports, tests, and medical prescriptions. Having it handy allows your doctor to provide the best care tailored to your specific condition.
Tip: Ensure you carry healthy snacks like fruits, dry fruits, and water to munch on while waiting for your scan.
Sample NT Scan Report
Why Choose Jammi Scans?
- Led by Dr. Deepthi Jammi, a gold-medal-winning fetal medicine specialist and one of the best gynecologists in Chennai with 15+ years of experience
- Over 20,000 successful NT Scans performed
- ISO 9001:2015-NABCB accredited, ensuring top-quality standards
- Uses the latest advanced technology machines to ensure accuracy in results
- Schedule appointments easily with less waiting time
- Clean and hygienic restrooms available for expecting mothers
- Personal counselling to help mothers understand their pregnancy better
- Conveniently located in T Nagar with excellent connectivity
How to Book an Appointment?
Call us at 7338771733 to schedule your NT scan today.
Frequently Asked Questions
1. What is a normal NT level in pregnancy?
A normal NT scan measurement is less than 3 mm. If the measurement is over 3 mm, healthcare experts may recommend further tests such as CVS, NIPT, or amniocentesis.
2. What is the cost of an NT scan in Chennai?
Ideally, the NT scan price in Chennai ranges from ₹2,000 to ₹4,000.
3. Is NT scan painful?
No, the NT scan is a non-invasive ultrasound scan and is not painful.