Quad Marker Screening Test - Results

What was the result of the quad marker screening test, and if it was positive, what action was taken?

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What does an abnormal result mean?

As with any screening test, an abnormal result does not mean that the fetus definitely has a birth defect or genetic condition. It only means that the blood levels of these four substances suggest that a woman's risk is increased of having a baby with certain conditions. Women who have a result suggesting increased risk are typically offered further testing. This can include repeating the quad screen and/or having a high definition ultrasound examination to look for signs of birth defects or abnormalities in the developing baby. If this testing is abnormal, the mother may be offered the choice to undergo amniocentesis. Amniocentesis involves withdrawing a sample of amniotic fluid for genetic and chromosome testing, and it can definitively establish the diagnosis of genetic and chromosomal problems in most fetuses. Amniocentesis carries a small risk of miscarriage (less than 1% of fetuses tested).

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