What the requisition is for
The Roy Romanow Provincial Laboratory runs next-generation sequencing panels for inherited cancer and endocrine conditions. The panel covers the coding regions of 102 genes, with MLPA used for copy number changes in some genes. You order a named panel, a custom list of genes, or a test for a variant already known in the family. The full gene list for each panel is in the RRPL Compendium of Tests.
Who completes it
The ordering provider completes the requisition and signs the pre-test counselling statement on the back. That can be a physician or a genetic counsellor. The patient doesn’t fill in any part of it.
How to fill in the requisition
Patient, provider and copies
Give the patient’s name, address, HSN, date of birth and sex, and your name with middle initial, MSB number and return address. Add a fax number for a copy to another provider, such as the oncologist or genetics clinic. Fill in ethnic background, since some variants are more common in particular populations.
Test panel requested
Tick one panel that matches the phenotype. The form warns that careful panel selection speeds reporting and limits the variants of uncertain significance you’ll have to counsel on. For a narrower request, use the custom gene panel boxes, for example BRCA1 and BRCA2 only.
Reason for referral
Choose one: confirmation of diagnosis in a patient with signs or symptoms, predictive testing with none, carrier screening, DNA banking only, or a family study or positive control, which gets no report.
Clinical and family information
The lab needs a pedigree with ages of onset and family history to process the sample. Give the patient’s cancer type and age at diagnosis, relevant pathology, relatives already tested and their results, and attach the lab reports.
Pre-test counselling and consent
Review the ten points on the back with the patient, including that DNA left over is banked unless they say otherwise, that results may reveal non-paternity, and what the Genetic Non-Discrimination Act does and doesn’t protect. Then sign the attestation that you obtained verbal consent.
Common reasons it’s delayed
- No pedigree, or a pedigree without ages of onset.
- No clinical phenotype, which the lab needs to interpret variants.
- A family variant request without the relative’s report attached.
- Too little blood, or the wrong tube.
- The consent attestation not signed.
Submitting and who pays
The patient takes the requisition to any test centre in Saskatchewan for the draw, and the sample goes to RRPL in Regina. Results come back to the ordering provider and any copy recipients listed. The requisition makes no mention of a charge to the patient.