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Q. I am pregnant. When should I get NTNG scan and dual marker done?

Answered by
Dr. Amit Kyal
and medically reviewed by Dr. Divya Banu M
This is a premium question & answer published on Sep 14, 2019

Hello doctor,

Which test should be done prior? NTNG scan or dual marker for pregnant women? LMP was two months back.

#

Hello,

Welcome to icliniq.com.

First-trimester screening for Down's syndrome should be done in all pregnancy between 11 to 14 weeks. The first-trimester screening for Down's syndrome includes USG for NT/NB scan and on the same day, blood is taken for the dual marker (BhCG and PAPA-A). Thereafter, using maternal age, values of NT scan and values of BhCG and PAPP-A, a risk ratio if Down's syndrome is obtained using computer software.


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