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What does a nuchal translucency scan indicate?

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Patient's Query

Hello,

Welcome to icliniq.com.

Kindly explain my nuchal translucency scan and double marker blood test reports in details. I am very worried due to in NT scan nasal bone could not be discretely seen. Gestational Age (as per USG) is 12 weeks and three days. All report attached here for your guidance and suggestions. Kindly help.

Hello,

Welcome to icliniq.com.

I do not see any problem in your reports (attachment removed to protect patient identity). Your blood reports and scan are within normal limits. Ultrasound scan is done at this 11 to 14 weeks to find out the most common genetic abnormality of the baby- Down syndrome.

1. Your age first diagnoses this, usually, as you cross 35 years the risk increases. For your age of 25 years, the risk is, very low. It has been mentioned in your report too.

2. The Nuchal translucency is the skin thickness of the baby's neck. In babies with Down syndrome, there is increased thickness. Up to around 3.5 mm is normal. Your level is normal.

3. Blood tests are the serum levels of PAPP-A and beta hCG. They are altered in the Down syndrome. As you see the risk of these above 1:250 is normal. As your values are above 4000, chances of any abnormality is next to impossible. Even the blood flow in the essential vessels are normal, which rules out Down syndrome (also called Trisomy 21). The only problem is nasal bone is not seen, and this could be ignored. If you want you can have repeat scan seven days later, by a doctor specialized in high-risk obstetrics. But I do not think that single finding needs to be worried about. I hope I have clarified your query, do write back if any more questions.

Medically reviewed byDr. Nithila. A

Published At June 30, 2019
Reviewed AtMay 13, 2024

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