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Alternate Names
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Quantiferon Gold TB, Quantiferon Gold IT, IGRA, Interferon Gamma, QFG, QG, Exposure to M. tuberculosis, Quantiferon TB Gold |
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Test Code
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QTB |
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Testing Laboratory
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Biochemistry |
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Specimen Type
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Container Type
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See collection instructions
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Medicare Rebate
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Out of Pocket Costs
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None |
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Ordering Information
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Collection Instructions
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Four special blood collection tubes packaged together with instructions and available from the Specimen Collection Centre or Microbiology: must be collected in the following order
- 1 x grey top tube (Nil)
- 1 x green top tube (TB Antigen 1)
- 1 x yellow top tube (TB Antigen 2)
- 1 x purple top tube (Mitogen Control)
- Immediately after filling the tubes, shake them ten (10) times just firmly enough to ensure the entire inner surface of the tube is coated with blood. This will dissolve antigens on tube walls
- Please ensure tubes are filled to a level within the line marker; under-filled and over-filled tubes are unsuitable for testing.
- All 4 tubes MUST be collected and tied together with an elastic band after collection.
- Samples for Quantiferon Gold should NOT be collected on Saturdays.
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Transport Instructions
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Transport ambient at room temperature |
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Storage Instructions
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Store ambient at room temperature |
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Testing Frequency
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Weekly |
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Min Test Volume
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2mL |
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Add On Test Suitability
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Add ons for this test cannot be performed. |
