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What does it mean if the quad marker screen results are abnormal?

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Quad marker screen results that are not in the normal range do not necessarily mean there is a problem in your pregnancy.

The quad marker screen is used as a screening tool only, which means it can only assess your risk of having a baby with a certain birth defects (it is not used to diagnose the particular problem that may be present). If the quad marker screen results are not in the normal range, further tests such as an ultrasound or amniocentesis may be necessary.

From: Pregnancy and the Quad Marker Screen WebMD Medical Reference

Reviewed by Trina Pagano on September 19, 2016

Medically Reviewed on 09/19/2016

SOURCES: The March of Dimes.  , "Second trimester maternal serum screening for fetal open neural tube defects and aneuploidy." American College of Medical Genetics, 2004.


Deborah A. Driscoll, MD

Reviewed by Trina Pagano on September 19, 2016

SOURCES: The March of Dimes.  , "Second trimester maternal serum screening for fetal open neural tube defects and aneuploidy." American College of Medical Genetics, 2004.


Deborah A. Driscoll, MD

Reviewed by Trina Pagano on September 19, 2016

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What are the odds of getting an abnormal quad marker screen result?

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