HomeAnswersObstetrics and Gynecologynt scanWhich test should be done in first trimester, NTNG scan or dual marker?

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

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Answered by

Dr. Amit Kyal

Medically reviewed by

Dr. Divya Banu M

Published At September 14, 2019
Reviewed AtAugust 22, 2023

Patient's Query

Hello doctor,

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

Answered by Dr. Amit Kyal

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 ultrasound for NT/NB scan and on the same day, blood is taken for the dual marker (B hCG and PAPP-A). Thereafter, using maternal age, values of NT scan and values of B hCG and PAPP-A, a risk ratio if Down's syndrome is obtained using computer software.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Amit Kyal
Dr. Amit Kyal

Obstetrics and Gynecology

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