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Welcome to

Prenatal Screening Ontario

Learn more about how PSO can support your prenatal screening journey.

Coming Soon

Fetal Blood Group Genotyping

In January 2026, we're launching new tests that can predict fetal blood type.
Don't miss out - Be among the first to learn about these new tests!

Learn more

My Screening Pathway

Feel confident in your care:
Learn about your prenatal screening options and make informed decisions.

Visit the website

PSO Infoline

Have a question? Want to connect with a genetic counsellor?
We are here to help!

Prenatal Screening Information Line

PSO Infoline

Requisitions

NT ultrasound locations

Resources

Program reports

Publications

Performance data

My Screening Pathway

Are you pregnant or planning a pregnancy? Learn more about prenatal screening and find out which screening options are right for you.

Visit the website

Positive eFTS result?

Did you receive a positive eFTS result? Learn what a positive result means, what follow-up options are available, and links to additional support and resources.

See next steps

NIPT ordering guide

Step-by-step instruction guide for healthcare providers for ordering non-invasive prenatal testing (NIPT) in Ontario.

See the guide

Sonographer guide on completing the MMS requisition

Quick reference to complete the requisition in various singleton and twin pregnancy scenarios available in PDF format.

See the guide

What's Happening

News

Results from Canada’s 1st National, Peer-reviewed Study on COVID-19 in Pregnancy
Jul 21, 2025
Working Together to Reduce Black Maternal Morbidity and Mortality
Jun 20, 2025
Update Regarding Non-Invasive Prenatal Testing (NIPT) Services
By Prenatal Screening Ontario - Apr 01, 2025
World Alloimmunization and HDFN Awareness day 2025
Apr 01, 2025
Safe Administration of Oxytocin: Collaborative Efforts
Feb 28, 2025

Events

Nov 20
Ontario CME 2025 - SOGC Conference
Nov 21
Ontario CME 2025 - SOGC Conference
Nov 22
Ontario CME 2025 - SOGC Conference