For Expecting Parents

A proven DNA-based technology

When you are pregnant, your blood contains fragments of your baby’s DNA. 

The Harmony Prenatal Test analyzes DNA in a sample of your blood to predict the risk of Down syndrome (trisomy 21) and certain other chromosomal conditions.

Learn more about Harmony DNA-testing technology

As early as 10 weeks

The Harmony Prenatal Test requires a single blood draw. It can be done as early as 10 weeks or later in pregnancy. Other screening tests for Down syndrome are performed later in pregnancy and may require multiple office visits.

Learn more about what to expect with Harmony Prenatal Test

A more accurate screening test

The Harmony Prenatal Test is a screening test that is more accurate than traditional screening tests for Down syndrome.1 Non-invasive prenatal testing based on cell-free DNA analysis is not considered diagnostic. Once you have your Harmony test results, you can discuss your pregnancy care with your healthcare provider.The Harmony test is much less likely to give a false-positive result compared to traditional tests such as the first trimester screening test.That means there will be much less chance your doctor would recommend follow-up diagnostic testing, such as amniocentesis.2

This test evaluates two other chromosome conditions: trisomy 18 and trisomy 13. In addition, with the Harmony test you have the option to test for sex chromosome conditions, 22q11.2 deletion and find out fetal sex all in the same blood draw. 

Learn more about the Harmony Prenatal Test

Data Source: Norton et al. N Engl J Med. 2015 Apr 23;372(17):1589-97
*Pregnancy unaffected with Down syndrome receives high probability result
**Pregnancy affected with Down syndrome receives high probability result
***Serum Papp-A, total or free B-hCG & Nuchal Translucency

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1. Norton et al. N Engl J Med. 2015 Apr 23;372(17):1589-97

2. Wax et al. J Clin Ultrasound 2015 Jan; 43(1):1-6.