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Test Name:
Parainfluenza Virus 1, 2, and 3 IgG and IgM Antibodies


  • SBMF No:
    44659
  • Performance Lab Name:
    ARUP Laboratories
  • Test Mnemonic:
    PARAFLU AB
  • ABN:
    Required – Not FDA-Approved
  • CPT Code:
    86790x6
  • LOINC Code:
    15389-0; 41405-2; 31553-1; 31549-9; 31551-5; 31554-9
  • Ref Lab Test No:
    0051084
  • Test Includes:
    Parainfluenza Virus 1 IgG Antibody
    Parainfluenza Virus 1 IgM Antibody
    Parainfluenza Virus 2 IgG Antibody
    Parainfluenza Virus 2 IgM Antibody
    Parainfluenza Virus 3 IgG Antibody
    Parainfluenza Virus 3 IgM Antibody
  • Spec Type:
    Serum
  • Spec Container:
    Gold top (SST) or red top (serum) tube
  • Pref Vol:
    1.0 mL
  • Min Vol:
    0.5 mL
  • Fasting:
    No
  • Spec Collect:
    Routine venipuncture
    Parallel testing is preferred
    Label samples as: "acute" or "convalescent"
    Convalescent samples must be received within 30 days from receipt of acute samples
  • Spec Process:
    Clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum to separate plastic tube
  • Spec Store Transport:
    Refrigerated
  • Spec Stability:
    After separation from cells:
    48 hours room temperature (20-30°C)
    2 weeks refrigerated (2-8°C)
    1 year frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Spec Reject:
    Plasma
    Hemolyzed, lipemic, turbid, bacterially contaminated, or heat-inactivated sample
  • Methodology:
    Enzyme-Linked Immunosorbent Assay (ELISA)
  • Clinical Significance:
    Refer to:
    ARUP Consult | The Physician's Guide to Laboratory Test Selection and Interpretation
  • Reference Range:

    ComponentsReference Interval
    Parainfluenza Virus 1 IgG Antibody0.89 IV or less: Negative - No significant level of parainfluenza virus 1 IgG antibody detected.
    0.90 - 1.10 IV: Equivocal - Questionable presence of parainfluenza virus 1 IgG antibody detected.  Repeat testing in 10-14 days may be helpful.
    1.11 IV or greater: Positive - IgG antibodies to parainfluenza virus 1 detected, which may suggest current or past infection.
    Parainfluenza Virus 1 IgM Antibody0.89 IV or less: Negative - No significant level of parainfluenza virus 1 IgM antibody detected.
    0.90 - 1.10 IV:  Equivocal - Questionable presence of parainfluenza virus 1 IgM antibody detected. Repeat testing in 10-14 days may be helpful.
    1.11 IV or greater: Positive - IgM antibodies to parainfluenza virus 1 detected, which may suggest current or recent infection. 
    Parainfluenza Virus 2 IgG Antibody0.89 IV or less: Negative - No significant level of parainfluenza virus 2 IgG antibody detected.
    0.90 - 1.10 IV:  Equivocal - Questionable presence of parainfluenza virus 2 IgG antibody detected. Repeat testing in 10-14 days may be helpful.
    1.11 IV or greater: Positive - IgG antibodies to parainfluenza virus 2 detected, which may suggest current or past infection. 
    Parainfluenza Virus 2 IgM Antibody0.89 IV or less: Negative - No significant level of parainfluenza virus 2 IgM antibody detected.
    0.90 - 1.10 IV:  Equivocal - Questionable presence of parainfluenza virus 2 IgM antibody detected. Repeat testing in 10-14 days may be helpful.
    1.11 IV or greater: Positive - IgM antibodies to parainfluenza virus 2 detected, which may suggest current or recent infection.
    Parainfluenza Virus 3 IgG Antibody0.89 IV or less: Negative - No significant level of parainfluenza virus 3 IgG antibody detected.
    0.90 - 1.10 IV:  Equivocal - Questionable presence of parainfluenza virus 3 IgG antibody detected. Repeat testing in 10-14 days may be helpful.
    1.11 IV or greater: Positive - IgG antibodies to parainfluenza virus 3 detected, which may suggest current or past infection.   
    Parainfluenza Virus 3 IgM Antibody0.89 IV or less: Negative - No significant level of parainfluenza virus 3 IgM antibody detected.
    0.90 - 1.10 IV:  Equivocal - Questionable presence of parainfluenza virus 3 IgM antibody detected. Repeat testing in 10-14 days may be helpful.
    1.11 IV or greater: Positive - IgM antibodies to parainfluenza virus 3 detected, which may suggest current or recent infection.   
  • Additional Test Info:

    The performance characteristics of this test were validated by ARUP Laboratories, Inc. The U.S. Food and Drug Administration (FDA) has not approved or cleared this test. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. ARUP is authorized under Clinical Laboratory Improvement Amendments (CLIA) and by all states to perform high-complexity testing.

  • Day Run:
    Tue
  • Time Reported:
    2-8 days
  • Test Type:
    INFECTIOUS ANTIBODY

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