Q. Kindly explain my dual test taken for pregnancy.

Answered by
Dr. Sree Gouri. S. R
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Jan 08, 2019

Hi doctor,

I just did a dual test. I am worried right now, please help. Gestational age is 12 weeks and 6 days, crown-rump length 64.8 mm, nuchal translucency MoM 1.7 mm, nasal bone is seen, hCG, free beta 60.47, PAPP-A 6020. Method: ECLIA (fully automated electrochemiluminescence system). I have attached the report. Disorder screen positive cut off: trisomy 21 (Down) 1:250, trisomy 18/23 1:250.



Welcome to

I can understand your concern. According to your test results (attachment removed to protect patient identity), negative factors are: PAPP-A levels are elevated. Beta hCG levels are low. Positive factors are your age is below 30 years and nuchal translucency is normal. Now the possible steps can be followed are as a dual test can be performed till 14 weeks, better to repeat the test after 48 hours preferably in a standard laboratory. If the results fall in a normal range, repeat the ultrasound after one week. If everything is normal, you can continue the pregnancy. If on repetition also test gives screen positive, the possibility of the chromosomal disorder is more and you may need to terminate the pregnancy after confirming with your doctor. Take care.

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