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Ontario Prenatal Screening
Chances of having a baby with one of these conditions
Are Prenatal Screening Tests right for you?
Do you want to have prenatal screening or not?
Early Prenatal Screening
Later Prenatal Screening
Understanding your results
Diagnostic tests
Timing of Screening Tests

Timing of Screening Tests

The chart below shows the timing of the different types of tests.  Your health care provider will be happy to discuss this with you further.

 

First Trimester Screening (FTS)

Integrated Prenatal Screening (IPS)

Serum Integrated Prenatal Screening (SIPS)

Triple and Quadruple Screening

You are pregnant   >

>

>

>

>

Weeks 11 – 14

Blood test and Ultrasound

Blood test and Ultrasound

First of 2 blood tests

 

Weeks 12 – 15

RESULTS AVAILABLE

 

 

 

Weeks 15 – 20

 

Second of 2 blood tests

Second of 2 blood tests

Blood test

Weeks 16 – 21

 

RESULTS AVAILABLE

RESULTS AVAILABLE

RESULTS AVAILABLE

 

If your prenatal screening test shows an increased chance of Down syndrome, trisomy 18 or open neural tube defects you may decide to have diagnostic testing.

 
For more information
Call the ministry INFOline at 1-866-532-3161
(Toll-free in Ontario only)
TTY 1-800-387-5559
Hours of operation : 8:30am - 5:00pm		   
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