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What is first trimester screening during pregnancy?

First trimester screening (FTS) is a test that can be done as a single combined screening or a step-by-step process, and involves an ultrasound scan between 11 and 14 weeks of pregnancy as well as blood testing. The ultrasound measures the "nuchal translucency," or thickness of skin on the back of the baby's neck. This measurement, in conjunction with levels of certain proteins found during the blood test, can help predict the risk of chromosomal abnormalities in the baby.

First trimester screening allows women under 35 to get more information about the health of their babies without having to undergo more invasive tests.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.