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Lab Dept:
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Serology
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Test Name:
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HHV7 IGG/IGM ANTIBODIES
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General Information
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Lab Order Codes:
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HHV7A
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Synonyms:
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Herpesvirus 7 IgG and IgM Antibody Panel, IFA ;Herpesvirus 7 IgG/IgM AB Panel; Herpesvirus 7 Ab Panel; Herpesvirus 7 IgG and IgM Antibody Panel,IFA; HHV-7 IgG and IgM Ab; HHV7 IgG IgM; Human Herpesvirus-7 G/M; Soft-FHHV7
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CPT Codes:
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86790 x2 – Antibody; virus, not elsewhere specified
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Test Includes:
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HHV7 IgG and IgM Antibody titers
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Logistics
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Test Indications:
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Human Herpesvirus 7 (HHV-7), a close relative of HHV-6, is found in >85% of the population, with transmission occurring in early childhood. Like HHV-6, HHV-7 is a cause of exanthum subitum (roseola infantum). Due to the ubiquitous nature of HHV-7 infection, >80% of individuals in the general population exhibit HHV-7 IgG titers >=1:20; however, only 5% of these individuals exhibit titers >1:320. Thus, HHV-7 IgG titers >=1:320 are suggestive of recent HHV-7 infection. Detection of HHV-7 specific IgM is also indicative of recent infection.
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Lab Testing Sections:
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Serology - Sendouts
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Referred to:
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Mayo Medical Laboratories forward to Focus Technologies, Inc. (MML Test#: FH7GM)
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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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1 – 8 days, test performed every Thursday
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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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Red top tube
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Draw Volume:
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3 mL (Minimum: 1.5 mL) blood
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Processed Volume:
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1 mL (Minimum: 0.5 mL) serum
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Collection:
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Routine venipuncture
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Special Processing:
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Lab Staff: Centrifuge specimen. Remove serum aliquot into a plastic screw-capped vial. Store and ship specimen refrigerated. Forward promptly.
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Patient Preparation:
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None
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Sample Rejection:
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Mislabeled or unlabeled specimens; specimens other than serum
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Interpretive
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Reference Range:
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IgG:
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<1:320
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IgM:
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<1:20
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Critical Values:
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N/A
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Limitations:
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This test was developed and its performance characteristics have been determined by Focus Diagnostics. Performance characteristics refer to the analytical performance of the test.
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Methodology:
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Immunofluorescence Assay IFA
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References:
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Mayo Medical Laboratories Web Page November 2012
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Focus Technologies, Inc. Web Page November 2012
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Updates:
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11/20/12: Reference range change for IgG. Previously listed as <1:160.
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