ADVERTISEMENT
ADVERTISEMENT

Q. What is the risk of trisomy 21 from my NT scan and double marker test?

Answered by
Dr. Deepti Verma
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Apr 16, 2018

Hi doctor,

I had an NT scan and a double marker test at 12 weeks and five days of pregnancy. The report is as follows.

  • Maternal serum screen 2: Dual test. (CLIA)

HCG, Free Beta 69.00 ng/mL equivalent to 1.81 Corr.MOM's

PAPP-A 1.40 mIU/mL equivalent to 0.36 Corr.MOM's

  • Disorder screen positive cut off

Trisomy 21 (Down) 1:250

Trisomy 18/13 1:100

  • Ultrasound DATA

CRL 62.9mm

Gestational age by CRL 12 + 4

Gestation age on the day of serum taking 12 + 5

Nuchal Translucency 2.00mm

NT'Mom's 1.23Mom

Nasal Bone Present

Measured by a radiologist.

  • Trisomy 21 Screening

Screen positive

'The calculated risk for Trisomy 21 (with nuchal translucency) is above the cutoff, which indicates an increased risk. After the result of the Trisomy 21 test (with NT) it is expected that among 156 women with the same data, there is one woman with trisomy 21 pregnancy and 155 women with not affected pregnancies.The PAPP-A level is low.The calculated risk by PRISCA depends on the accuracy of the information provided by the referring physician.'

I wanted to know about the risk if in the first-trimester screening window is positive. Please suggest.

ADVERTISEMENT
#

Hello,

Welcome to icliniq.com.

I have gone through your question and understand the concerns. I have reviewed the report.

It shows an increased risk in the first-trimester screening.

You should go for amniocentesis at 16 weeks gestation to rule out any chromosomal anomalies in the fetus.

Hope you found the answer helpful. Regards.

For more information consult a fetal medicine specialist online --> https://www.icliniq.com/ask-a-doctor-online/fetal-medicine-specialist


Was this answer helpful?

 | 

Same symptoms doesn’t mean you have the same problem. Consult a doctor now!



Related Questions:
In NT scan,Trisomy 21 screen is positive. What does it mean?

She had NT or NB scan and double marker test in obstetrical ultrasound ...   Read full

After NT scan, now the doctor has advised double marker test. Is there a high risk?

.. (nuchal translucency) test and double marker are dependent on each other. A risk of 1 in 3428 is not considered high. You have been asked to go for a blood test so as to conclude the results, as only NT test is not sufficient. For the double marke...   Read full

Should I need amniocentesis?

.. gone through the attachment (attachment removed to protect patient identity). Usually, quadruple test is done at 16 to 18 weeks. Sensitivity at 19 weeks is doubtful. Amniocentesis is a good diagnostic test. It will be a confirmatory test, and you ...   Read full

ADVERTISEMENT

Also Read Answers From:

ideaComprehensive Medical Second Opinion.Submit your Case

Also Read


Management of Coronasomnia
Coronasomnia refers to increased sleep problems among people during the COVID-19 pandemic. Read the below article to get...  Read more»
Balantidiasis - Causes, Signs and Symptoms, Diagnosis, Treatment, and Prevention
Balantidiasis is a rare bacterial infection caused by a parasite called Balantidium coli. Read the article below to know...  Read more»
JAK Inhibitors in Treating Rheumatoid Arthritis
Doctors mainly suggest JAK or Janus kinase inhibitors for patients with rheumatoid arthritis to ease their symptoms. Rea...  Read more»

Ask your health query to a doctor online?

Ask a Fetal Medicine Specialist Now

* guaranteed answer within 4 hours.

Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.