
GTD Indications
Diagnosis
Carrier / Cascade Testing
GTD Samples Accepted
Blood
DNA
Dried Blood Spot (accepted ONLY for exceptional circumstances)
GTD Test Methodology
CNV
Sequencing
GTD Methodology Notes
GTD Notes
Accepted for infants who have had PHL genetic screening at birth, are subsequently found to have hearing loss and when reported as an infant risk are found to be a carrier of one variant in GJB2 and/or SLC26A4. Accepted until 6 years of age.
Generic Test name (cms title)
Non-Syndromic Hearing Loss
GTD Test type
Gene Panel
GTD Location
Newborn Screening Ontario
GTD Gene/Platform/Region List
GJB2 (deletion included), SLC26A4
GTD Category
Audiology
GTD Disease/Condition
Non-syndromic hearing loss