Prenatal Screening Ontario

Prenatal Screening Ontario (PSO) is the provincial resource for pregnant individuals, families, and health-care professionals seeking trusted information and updates about prenatal screening.

Funded by the Government of Ontario, PSO oversees and coordinates prenatal screening services across the province, helping to ensure a cohesive, accessible, and high-quality system of care.

Mandate

• Monitor and report on how prenatal screening is performing across Ontario.
• Set standards and promote consistent, high-quality prenatal screening lab services.
• Educate and support health-care providers, pregnant individuals, and families.
• Support Expert Committees with coordination and secretarial functions.
• Engage partners—including people with lived experience—to guide PSO’s evaluation.
• Provide evidence-based advice to improve prenatal screening and related clinical care.