Ontario Genetic Test Directory

This directory lists diagnostic genetic tests available in Ontario for rare and inherited diseases, including molecular genetic, constitutional cytogenetic and pharmacogenetic tests.

This directory does not include:

Please contact your local genetics laboratory to confirm availability of testing, patient eligibility or sample requirements.

See Genetics Guidance for evidence-based clinical guidance on genetic testing in Ontario, and the Ontario Genetics Clinic Directory for a list of genetics clinics in Ontario.

The information in this directory is intended for informational purposes only and may not reflect all recent updates.

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Skeletal\Growth
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Lab/Location

London Health Sciences Centre
The Hospital for Sick Children
National Inherited Bleeding Disorder Genotyping Laboratory, KGH
Dynacare
St. Michael’s Hospital
Sunnybrook Health Sciences Centre
North York General Hospital
Kingston General Hospital
Mount Sinai Hospital
Children's Hospital of Eastern Ontario
Trillium Health Partners - Credit Valley Hospital
Newborn Screening Ontario
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University Health Network

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DPYD

Category:
Pharmacogenetics
Sub Category:
Dihydropyrimidine dehydrogenase deficiency (DPYD)
Lab:
Dynacare
Test type:
Targeted Variant
Lab/Location:
Dynacare

Karyotype

Category:
Chromosomal Anomalies , Fertility\Reproductive
Sub Category:
Chromosomal Anomalies
Test type:
Cytogenetic
Lab/Location:
London Health Sciences Centre

MEN1 Syndrome

Category:
Cancer
Sub Category:
Multiple Endocrine Neoplasia Type 1 (MEN Type 1)
Test type:
Gene Panel
Lab/Location:
Mount Sinai Hospital

Microarray

Category:
Chromosomal Anomalies , Neurodevelopmental
Sub Category:
Microarray: Microduplication/deletion Syndrome
Test type:
Cytogenetic
Lab/Location:
London Health Sciences Centre

SCID ADA

Category:
Immunity , Metabolic
Sub Category:
Primary immune deficiencies
Test type:
Single Gene
Lab/Location:
Newborn Screening Ontario

Last Updated: June 18, 2025