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Lab Dept:
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Chemistry
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Test Name:
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GGT
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General Information
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Lab Order Codes:
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GGT
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Synonyms:
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Gamma Glutamyltransferase; Gamma GT
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CPT Codes:
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82977–Glutamyltransferase, gamma
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Test Includes:
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Gamma GT concentration reported in U/L.
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Logistics
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Test Indications:
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Increases in GGT usually result from diseases of the liver, especially diseases associated with obstruction of the flow of bile.
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Lab Testing Sections:
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Chemistry
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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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Daily, 24 hours
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Turnaround Time:
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4 hours
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Special Instructions:
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N/A
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Specimen
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Specimen Type:
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Blood
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Container:
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Green top (Li Heparin) tube preferred
Alternate tube: Red top (plain, no gel) tube
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Draw Volume:
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0.6 mL blood
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Processed Volume:
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0.2 mL serum/plasma
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Collection:
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Routine venipuncture. Mix tubes containing anticoagulant by gentle inversion.
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Special Processing:
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Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into plastic sample cup. Analyze sample immediately or store at refrigerated temperatures.
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Patient Preparation:
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None
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Sample Rejection:
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Unlabeled specimen
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Interpretive
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Reference Range:
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Males: 15 – 85 U/L
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Females: 5 – 55 U/L
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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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Enzymatic 37°C
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References:
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GGT Flex® reagent cartridge insert sheet Siemens Healthcare Diagnostics Inc. (2008-03-04) J 717045.002 - US
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Jacobs & DeMott Laboratory Test Handbook, Lexi-Comp, Inc, Hudson, OH, 5th Edition, 2001
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©2001-2006 American Association for Clinical Chemistry Lab Tests Online
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Biorad Liquichek Unassayed Chemistry Control Product Insert, Bio-Rad Laboratories, Irvine, CA 92618
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