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Rare Polyposis Genes
Alternative Names/Synonyms
HCT, Hereditary Cancer Testing, Germline, Predictive, Hereditary Cancer, GALNT12, RPS20
Laboratory
Diagnostic Medical Genetics
Sub-section
Advanced Molecular Diagnostics
Specimen Type
Blood or DNA
Test Code
RAPG1
Ordering Instructions, Requisition
https://www.sinaihealth.ca/media/17561/download?inline
Supporting Documents
Hereditary Cancer Testing Reference Sequences
Clinical Significance
Please refer to Genetic Testing Program | Cancer Care Ontario
https://www.cancercareontario.ca/en/guidelines-advice/treatment-modality/pathology-laboratory-testing/genetic-testing-resources
Specimen Requirements (Sample Type)
Peripheral blood or DNA (please specify source if DNA)
Specimen Requirements (Volume (mL))
2 tubes x 4 mL of blood
5 ug of DNA in TRIS-HCl or water only (no EDTA)
Specimen Requirements (Tube Type)
EDTA lavender top for blood
Collection Containers – Tube Types
or
2 mL screw top tube for DNA
Collection Requirements
Blood Collection Instructions
Storage / Shipment Details
Collect and ship samples at room temperature on the same day. Samples should be received within 24 to 48 hours.
Sample Stability
Room Temperature: 7 days
Cause for Rejection
Specimen Acceptability and Transport Guidance
Instrument, Methodology
Sequencing + CNV
Test Availability
STAT, Routine; Monday to Friday
STAT Turnaround Time
4 weeks
Routine Turnaround Time
6-8 weeks
Laboratory Contact Information
molecularlab.MSH@sinaihealth.ca
Approval Required
Yes if not associated with a Genetic Counsellor
Gene(s)
GALNT12, RPS20
Sample Processing / Delivery
Samples received and processed Monday to Friday 8:30 am - 4:30 pm
Funded for patients with OHIP
Yes
Disease/Body Site
Hereditary Cancer; Indications outlined by Ontario Health (formerly Cancer Care Ontario); see link in Clinical Significance section