Hemochromatosis (HFE) 2 Variants Analysis by Real-Time PCR
CPT Code(s)
81256, G0452
Synonym(s)
HFE Gene Analysis; Hereditary Hemochromatosis (C282Y and H63D mutation), Hereditary Hemochromatosis DNA Mutation Analysis, Molecular, Hemochromatosis Variants
Performed
Molecular Diagnostics Laboratory
Clinical Indication and Relevance
The assay is useful for patients with iron overload, and/or a family history of hereditary hemochromatosis.
Methodology
DNA is isolated from the patient sample and regions of the HFE gene are amplified by real-time PCR and the p.H63D and p.C282Y variants are detected by the allelic discrimination method. Results are reported as variants not detected, heterozygous or homozygous for the p.H63D and/or p.C282Y variants.
Minimum Specimen Requirements
Collect
- Peripheral blood (PB): 1-3 mL, in purple top (sodium EDTA) tube.
- Yellow top (ACD) tube also acceptable.
Transport
Room temperature or 2-8°C (wet ice or cold packs). Do not freeze.
Stability
Room temperature: 8 hours. Refrigerated: 48 hours.
Unacceptable Samples
Serum or plasma; frozen PB or BM; clotted blood; severely hemolyzed samples.
Turnaround time
Six working days
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