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  • What We Screen For In Ontario
    • Trisomy 21 (Down Syndrome)
    • Trisomy 18 (Edwards Syndrome)
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  • Prenatal Screening Options
    • Is Prenatal Screening Right For Me?
    • Less than 14 Weeks' Pregnant
    • 14-21 Weeks' Pregnant
    • More than 21 Weeks' Pregnant
    • Twins and More Than Two Babies
    • Vanishing Twins
  • Results and Next Steps
    • Enhanced First Trimester Screening (eFTS) Results
    • Second Trimester Screening (STS) Results
    • Vanishing Twins Screening Results
    • Non-invasive Prenatal Testing (NIPT) Results
    • 11-14 Week (Nuchal Translucency) Ultrasound Results
    • 18-22 Week Ultrasound Results
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HomePrenatal Screening Options14-21 Weeks' Pregnant
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pregnant woman holding ultrasound image

14-21 Weeks' Pregnant

In your second trimester of pregnancy, you may be able to choose from the following tests:

test tube

| Second Trimester Screening

You can get publicly-funded Second Trimester Screening (STS) in the second trimester of pregnancy.  This test is safe because it uses only a blood test. It can tell you the chance of having a baby with trisomy 21 (Down syndrome) or trisomy 18 (Edwards syndrome).

Learn more


 

test tube

| Non-Invasive Prenatal Testing

Non-invasive Prenatal Testing (NIPT) is the most accurate prenatal genetic screening test and may be publicly-funded or private-pay depending on your situation. This test is safe because it uses only a blood test. NIPT can tell you the chance for having a baby with trisomy 21 (Down syndrome), trisomy 18 (Edwards syndrome) and other chromosome differences. You can have NIPT from the time you are 9 or 10 weeks pregnant until the end of the pregnancy. 

Learn more


 

ultrasound

| 18-22 week ultrasound

You can have the 18-22 week ultrasound no matter what prenatal genetic screening choice you make. This ultrasound gives you information about the health of the baby and other aspects of the pregnancy. It is sometimes called the second trimester scan or the detailed anatomy scan.

Learn more

  • Prenatal Screening Options
    • Is Prenatal Screening Right For Me?
    • Less than 14 Weeks' Pregnant
      Toggle Section Less than 14 Weeks' Pregnant Menu
      • Enhanced First Trimester Screening (eFTS)
      • Non-Invasive Prenatal Testing (NIPT)
        Toggle Section Non-Invasive Prenatal Testing (NIPT) Menu
        • NIPT Funding Criteria
      • 11-14 Week (Nuchal Translucency) Ultrasound
    • 14-21 Weeks' Pregnant
      Toggle Section 14-21 Weeks' Pregnant Menu
      • Second Trimester Screening (STS)
      • Non-Invasive Prenatal Testing (NIPT)
        Toggle Section Non-Invasive Prenatal Testing (NIPT) Menu
        • NIPT Funding Criteria
      • 18-22 Week Ultrasound
    • More than 21 Weeks' Pregnant
      Toggle Section More than 21 Weeks' Pregnant Menu
      • Non-Invasive Prenatal Testing (NIPT)
        Toggle Section Non-Invasive Prenatal Testing (NIPT) Menu
        • NIPT Funding Criteria
      • 18-22 Week Ultrasound
    • Twins and More Than Two Babies
    • Vanishing Twins

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Prenatal Screening Ontario 
CHEO Research Institute 
Centre for Practice-Changing Research Building 
401 Smyth Road 
Ottawa, ON K1H 8L1

Phone: 613-737-2281>

Toll-Free: 1-833-351-6490

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