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First Trimester Down Syndrome Screen
Formal name: First Trimester Screen – Pregnancy-associated plasma protein-A (PAPP-A), human chorionic gonadotropin (hCG), as either free beta subunit or total hCG, and a nuchal translucency ultrasound Related tests: Triple/Quad Screen, total hCG
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Related Pages
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On This Site
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This article was last reviewed on
July 5, 2007.
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