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Cystic Fibrosis, Molecular Testing

Referred out for testing

Source Blood
Mnemonic

MISCREFBL

Misc Ref Test Name field: Cystic Fibrosis

Specimen Requirements

Adults:
3 x 4 mL (or 2 x 6 mL) lavender top EDTA tube whole blood

Pediatric:
2 x 3 mL lavender top EDTA tubes whole blood

Newborns:
Minimum volume 0.5 mL lavender top EDTA whole blood

Specimen Handling

Unopened dedicated tubes are required for U of A Molecular Diagnostic Laboratory (MDL) testing.

DO NOT centrifuge or separate specimen. DO NOT freeze.

Transport whole blood at room temperature to DSC. Ensure U of A MDL requisition is sent with specimen.

DSC:
Store refrigerated and ship at room temperature. Specimen must arrive at testing lab within 7 days of collection date.

Additional Information

Genetic testing of asymptomatic minors is not performed unless there is clinical benefit to the child while still a minor.

CLS staff:
Whenever possible, allow 2 patient identifiers to be shown on first label on specimen when applying the lab label.

Testing Location University of Alberta
Testing Frequency Test performed within 2-4 weeks of receipt of sample.
Alternate Name(s) CFTR
Reference Interval