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What is the second trimester AFP/freeBeta screen?

April 26, 2017AFP freebeta screen trimester

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What is the second trimester AFP/freeBeta screen?

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The second trimester AFP/free beta hCG screen is a maternal blood test performed between 13 weeks 4 days and 22 weeks 3 days which identifies fetuses at increased risk for conditions like open neural tube defects (ONTD), Down syndrome and Trisomy 18. The blood test measures the level of 2 proteins- free beta hCG and AFP in maternal blood. This test is safe for you and your baby.