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Blog: Recent Posts
  1. ACOG Opinion on Noninvasive Prenatal Genetic Testing

    Noninvasive Prenatal Testing for Fetal Aneuploidy ABSTRACT: Noninvasive prenatal testing that uses cell free fetal DNA from the plasma of pregnant women offers tremendous potential as a screening tool for fetal aneuploidy. Cell free fetal DNA testing should be an informed patient choice after pretest counseling and should not be...
  2. Choosing to Participate in Prenatal Screening for Down Syndrome

    New prenatal screening test for Down syndrome raises questions LEISA SCOTT IT RAINED the day they got the news. Big, pelting drops, as if some screenwriter well-versed in melodrama was dictating the scene. Annie Love couldn’t take the call. She’d been going “slowly nuts” waiting for diagnosis day to arrive...

Commonly Asked Questions

How is our DNA Prenatal Paternity Testing done?

A small amount of your baby’s DNA is present in your blood. A safe blood draw from your arm can determine the father of your baby by matching the baby’s DNA with the father’s DNA.

How accurate is our DNA Prenatal Paternity Test?

DNA prenatal paternity testing can either exclude or confirm a father. Our test is over 99% accurate.

Where do I go for testing?

Please contact Ravgen at (410) 715-2111 to make convenient arrangements.

How early can you detect fetal DNA?

Fetal DNA can be detected as early as 5 weeks and rises rapidly throughout the first trimester. We can do very reliable DNA testing from fetal DNA present in the mother’s blood after the 8th week of pregnancy.

What kind of things can you test for with fetal DNA?

We can test for a number of single gene disorders including: cystic fibrosis, sickle cell, and the Jewish panel. In addition to single gene disorders, we can do non invasive prenatal DNA paternity testing.

Can cells last from a previous pregnancy?

In the mother’s blood there are intact fetal cells and free floating fetal DNA, which was released from intact fetal cells destroyed by the mother’s immune system. While it is thought that a few rare intact fetal cells can escape the mother’s immune system and persist from previous pregnancies, free floating fetal DNA can only last for a few hours. Therefore, all of our tests are based on free floating fetal DNA present in the mother’s blood rather than intact fetal cells. It has been well shown that free floating fetal DNA can not exist from previous pregnancies.

Is this technology approved by any governing bodies?

Ravgen has been recognized and approved by the College of American pathologists (CAP) and has received a certificate of accreditation under the Clinical Laboratory Improvement Amendments (CLIA).

Has this technology been published?

Ravgen Inc. has published the basis of this technology in top medical journals such as the New England Journal of Medicine, The Lancet and the Journal of the American Medical Association. Please see news for additional publications.