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Lab Dept:
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Serology
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Test Name:
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INFLUENZA VIRUS B, IGG & IGM ANTIBODIES
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General Information
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Lab Order Codes:
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IFLB
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Synonyms:
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N/A
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CPT Codes:
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86710 x2 – Antibody; influenza virus
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Test Includes:
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Separate determinations of Influenza Virus B IgG and IgM reported as titers.
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Logistics
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Test Indications:
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Diagnosis of recent infection when isolation of the organism by culture is unsuccessful. Incidence of influenza virus is seasonal in the United States and usually occurs only from November to March.
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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 (Test# SFLB)
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Phone Numbers:
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MIN Lab: 612-813-6280
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STP Lab: 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 – 3 days, test set up Monday - Friday
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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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1 mL (Minimum: 0.6 mL) blood
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Processed Volume:
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0.25 mL (Minimum: 0.15 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 and place in a round bottom, screw-capped plastic vial. Store and ship refrigerated. Forward promptly.
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Patient Preparation:
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None
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Sample Rejection:
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Specimens other than serum, mislabeled or unlabeled specimens
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Interpretive
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Reference Range:
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IgG:
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<1:10
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IgM:
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<1:10
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The presence of IgM class antibodies or a fourfold or greater rise in paired (acute and convalescent) sera indicates recent infection. The presence of IgG class antibody alone generally indicates past exposure.
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Critical Values:
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N/A
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Limitations:
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Incidence of influenza virus infections occur exclusively from November to March.
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Methodology:
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Immunofluorescence
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References:
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Mayo Medical Laboratories November 2012
Phone: 1-800-533-1710
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