pregnancy
Prenatal Tests
| Test | What is it? | When/Where? |
| Genetic screening | If you have a family history of inherited diseases such as Tay-Sachs or thalassemia, consider genetic counseling to assess your risk of having a child with the disease. It is standard to offer all couples screening for cystic fibrosis. Certain ethnicities may predispose you to carrying genetic disorders. | Ideally, should be performed before conception, but may be done early in the pregnancy. The screening begins with a session with a genetic counselor and may involve some blood tests. |
| Chorionic villus sampling ( CVS ) | Placental cells are removed and tested for chromosomal and genetic disorders. | 10 to 12 weeks. Performed as an in-office procedure. |
| Fetal nuchal translucency | Uses ultrasound to assess the fold in the back of the fetus's neck to determine the risk of Down syndrome. | 10 to 14 weeks. Performed as an in-office procedure. |
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