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Lab Dept:
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Chemistry
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Test Name:
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INTERFERON, GAMMA
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General Information
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Lab Order Codes:
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IFNG
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Synonyms:
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Gamma Interferon, IFN Gamma
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CPT Codes:
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83520 - Immunoassay, analyte, quantitative; not otherwise specified
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Test Includes:
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N/A
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Logistics
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Test Indications:
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N/A
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Lab Testing Sections:
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Chemistry - Sendouts
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Referred to:
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Fairview University Diagnostic Laboratories (Test# IFNG)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Monday - Friday
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Turnaround Time:
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5 days
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Special Instructions:
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Specimens must be sent to the laboratory immediately after collection for processing.
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Specimen
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Specimen Type:
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Whole blood or CSF. Blood is the specimen of choice.
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Container:
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Blood: Red top (plain, no gel) tube
CSF: Screw-capped, sterile vial
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Draw Volume:
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5.0 mL (Minimum: 0.6 mL) blood
2.0 mL (Minimum: 0.2 mL) CSF
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Processed Volume:
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2.0 mL (Minimum: 0.2 mL) serum
2.0 mL (Minimum: 0.2 mL) CSF
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Collection:
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Routine venipuncture or CSF collection.
Deliver to laboratory immediately
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Special Processing:
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Lab Staff: Specimen must be processed immediately after collection. Centrifuge and aliquot 1.60 mL into 8 vials or 0.20 mL (minimum) into 1 vial. Store frozen (at –70ºC preferred). Ship frozen. Forward promptly.
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Patient Preparation:
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None
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Sample Rejection:
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Gross hemolysis, stored at room temperature >2 hours
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Interpretive
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Reference Range:
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≤3.0 pg/mL
Note: This range applies to blood levels only. There are no ranges available for CSF.
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Critical Values:
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N/A
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Limitations:
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N/A
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Methodology:
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Enzyme-linked immunosorbent assay
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Contraindications:
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N/A
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References:
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Fairview University Diagnostic Laboratories Laboratory Web Page http://labguide.fairview.org/diagnostic.asp
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