Trisomy 13

Trisomy 13 is a congenital disorder caused by the presence of an extra #13 chromosome, occurring in about 1 out of 10,000 live births.

Trisomy 13 is always fatal, with more than 80% of babies dying in the first month. The disorder is characterized by profound mental retardation, cardiac problems, and multiple deformities.

Testing options for trisomy 13

• Amniocentesis/Amniotic Fluid Testing
• Chorionic Villi Sampling (CVS) Testing

View Test Comparison Chart (PDF)
Compare testing periods, detection rates and risks for screening and diagnostic testing options.