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May 23, 2013
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Birth Defects Testing (cont.)

Health Tools

Health Tools help you make wise health decisions or take action to improve your health.


Decision Points focus on key medical care decisions that are important to many health problems.Decision Points focus on key medical care decisions that are important to many health problems.
Pregnancy: Should I Have Amniocentesis?
Pregnancy: Should I Have an Early Fetal Ultrasound?
Pregnancy: Should I Have CVS (Chorionic Villus Sampling)?
Pregnancy: Should I Have the Maternal Serum Triple or Quadruple Test?

Types of Tests

You and your doctor can choose from several tests. What you choose depends on your wishes, where you are in your pregnancy, your family health history, and what tests are available in your area. You may have no tests, one test, or several tests.

Screening tests show the chance that a baby has a certain birth defect. Diagnostic tests show if a baby has a certain birth defect.

Screening testsWhen they are usually done

First trimester screening (first part of integrated screening)

10 to 13 weeks

Triple or quad screening (second part of integrated screening)

15 to 20 weeks

Ultrasound (pictures of baby's body)

18 to 20 weeks
Diagnostic testsWhen they are usually done

Chorionic villus sampling (CVS)

10 to 13 weeks

Amniocentesis

15 to 20 weeks
Next Page:
First Trimester Tests»
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