NatrisTM Prenatal Screen

Natris™-An Advanced Next Generation Sequencing Screening Test

Natris™ is a simple blood test that screens for the most common chromosomal abnormalities, Down syndrome, Trisomy 18, and Trisomy 13, and sex chromosome aneuploidy.

A sample can be drawn in your doctor’s office as early as  the 10th week of pregnancy. Natris™ is available for both singleton and twin pregnancies.

Pregnant woman smiling and holding stomach

Natris™ Plus-Responsibly Expanding the Accurate, Reliable, and Relevant Natris™

The  Natris™ Plus for singleton pregnancies  screens for Down syndrome, Trisomy 18, Trisomy 13 and additional options that you and your healthcare provider may choose  to select, as shown below:

  • Select microdeletions such as 1p36 deletion, 4p- (Wolf-Hirschhorn syndrome), 5p- (cri-du-chat syndrome), 15q11.2 (Prader-Willi syndrome/Angelman syndrome), and 22q11.2 deletion (DiGeorge syndrome)
  • Sex chromosome aneuploidies (monosomy X, XXX, XXY, and XYY) are included if requested; fetal sex (XX or  XY) will be reported if no sex chromosome aneuploidy is detected.
  • Aneuploidy (trisomy) of all chromosomes, including sex chromosome aneuploidies.

How It Works

A  sample  of your  blood is drawn  and the genetic material  (DNA) from your baby is tested.  Natris™ takes a deeper approach to  the science, using an advanced technology  called “Whole Genome Sequencing” to analyze millions of DNA fragments per sample and accurately count the number of chromosomes present.

How Verifi works diagram

Detection

Down Syndrome

Sensitivity
Specificity

Trisomy 18

Sensitivity
Specificity

Trisomy 13

Sensitivity
Specificity

MX (Turner Syndrome)

Sensitivity
Specificity

XX (female fetus)

Sensitivity
Specificity

XY (male fetus)

Sensitivity
Specificity

Microdeletion Panel

Sensitivity
Sensitivity

XXX, XXY, XYY: Limited data of these more rare aneuploidies preclude performance calculations

Screening for fetal aneuploidy in twin gestations poses unique challenges such as lower levels of DNA available for analysis from each fetus. By expanding the sensitivity and overall capability of the assay, the test can screen twin pregnancies for Down syndrome, Trisomy 18, Trisomy 13 and the presence of Y chromosome (optional). The test can be used in both monozygotic and dizygotic pregnancies

Test Results

Turn around time: Results can be expected 5-8 business days from the time the sample is received at the laboratory.

Learn more about why Eurofins NTD Genetics has been the laboratory to trust for over 30 years.

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Trust

Our Goal is to Educate and Empower

Know your choices, understand your options, and talk you your healthcare provider about the best prenatal screening program for you.

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