Test Details

Mnemonic

IL28B

Ordering Code

3514950

CPT-4 Code(s)

81283

Specimen Information

Patient Preparation

If using saliva sample, patient should not eat, drink, smoke, or chew gum for 30 minutes prior to collection.
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Collect

Lavender EDTA
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Specimen Preparation

Invert tube several times to mix blood and send 3.0 mL whole blood at room temperature in original collection tube.
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Alternate Specimen

Saliva, extracted DNA
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Minimum Volume

0.4 mL whole blood, 1 saliva swab
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Transport Temperature

Room temperature
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Stability

Room temperature: 9 days
Refrigerated: 30 days
Frozen: Unacceptable
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Methodology

Polymerase Chain Reaction (PCR) followed by 5'-Nuclease End-Point Allelic Discrimination Analysis
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Reference Range

See report
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Performing Laboratory

Mayo Clinic Laboratories
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New York DOH Approval Status

Yes
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