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Pregnancy & Prenatal Testing

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First Trimester (up to 12 weeks)

At the time of the first prenatal visit, which often takes place during the first trimester of pregnancy, a healthcare practitioner may order several or most of the tests described below to check for certain conditions and infections that could harm the unborn baby or affect the mother's health during the pregnancy.

The following tests may be offered to women to assess risk of or detect fetal abnormalities:


March of Dimes: Prenatal tests Prenatal care and tests
Centers for Disease Control and Prevention: Guidelines for Vaccinating Pregnant Women