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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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When can DNA test be done during pregnancy?

Answered by
Dr.
Dr. Archana Verma

Pediatrician

Practicing since :2006

Answered : 1129 Questions

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Posted on Sat, 3 Sep 2016 in Pregnancy
Question: At my first visit with the potential father present can I request a prenatual DNA test ?
doctor
Answered by Dr. Archana Verma 1 hour later
Brief Answer:
Wait for 8 weeks of pregnancy

Detailed Answer:
Hi

For prenatal testing, or testing done during pregnancy, there are several options to choose from:

Non-Invasive Prenatal Paternity (NIPP): A non-invasive prenatal paternity test is the most accurate non-invasive way to establish paternity before the baby is born. The process is state-of-the-art, combining the latest technology and proprietary methods of preserving and analyzing the baby’s DNA found naturally in the mother’s bloodstream. This test requires only a simple blood collection from the mother and alleged father and can be performed any time after the 8th week of pregnancy. The test is 99.9% accurate.

Amniocentesis: This test is performed in the second trimester, anywhere from the 14th-20th weeks of pregnancy. During this procedure, the doctor uses ultrasound to guide a thin needle into your uterus, through your abdomen. The needle draws out a small amount of amniotic fluid, which is tested. Risks include a small chance of harming the baby and miscarriage. Other side effects may include cramping, leaking of amniotic fluid, and vaginal bleeding. A doctor’s consent is needed to do this procedure for paternity testing.

Chorionic Villus Sampling (CVS): This test consists of a thin needle or tube which a doctor inserts from the vagina, through the cervix, guided by an ultrasound, to obtain chorionic villi. Chorionic villi are little finger-like pieces of tissue attached to the wall of the uterus. The chorionic villi and the fetus come from the same fertilized egg, and have the same genetic makeup. This testing can be done earlier in pregnancy from the 10th-13th weeks. A doctor’s consent is needed to do this procedure for paternity testing.

So, you need to go to a reliable center after 2 months from last menstrual period to assess this. Hopefully it will be of help.

Take care
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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