What Tests Do You Need?

If you need tests, it will be up to your healthcare provider to recommend which of the following tests you need:

• Specialized or targeted ultrasound – This is an imaging technique that uses high-frequency sound waves to produce images of a baby in the uterus — targets a suspected problem, such as abnormal development.
• Prenatal cell-free DNA screening – DNA from the mother and fetus is extracted from a maternal blood sample and the fetal DNA is screened for the increased chance of specific chromosome problems.
• Ultrasound for cervical length – Your health care provider might use an ultrasound to measure the length of your cervix at prenatal appointments to determine if you're at risk of preterm labor.
• Lab tests – Your health care provider will test your urine for urinary tract infections and screen you for infectious diseases such as HIV and syphilis.

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