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Test Name:
Hepatitis B Virus DNA, Quantitative, by Real-Time PCR


  • SBMF No:
    44452
  • Performance Lab Name:
    ARUP Laboratories
  • Test Mnemonic:
    HBV DNA-
  • ABN:
    Not required
  • CPT Code:
    87517
  • LOINC Code:
    48398-2; 33629-7; 42595-9
  • Ref Lab Test No:
    0056025
  • Also Known As:
    HBV Viral Load
    Hepatitis B Virus DNA Quant
  • Spec Type:
    Serum or plasma
  • Spec Container:
    Gold top (SST) or Lavender top (EDTA) tube
  • Pref Vol:
    2.0 mL
  • Min Vol:
    0.75 mL
  • Fasting:
    No
  • Spec Collect:
    Routine venipuncture
  • Spec Process:
    Serum sample tubes, clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum or plasma to separate plastic tube and freeze
  • Spec Store Transport:
    Frozen
    Submit specimen according to Biological Substance, Category B, shipping guidelines
  • Spec Stability:
    24 hours (on cells) room temperature (20-30°C)
    Plasma or serum removed from cells:
    72 hours room temperature (20-30°C)
    1 week refrigerated (2-8°C)
    6 weeks frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Spec Reject:
    Heparinized specimen
  • Spec Remarks:
    Separate samples must be submitted when multiple tests are ordered
    Separate serum or plasma from cells within 24 hours
  • Methodology:
    Quantitative Real-Time Polymerase Chain Reaction (RT-PCR)
  • Clinical Significance:
    Refer to:
    ARUP Consult | The Physician's Guide to Laboratory Test Selection and Interpretation
  • Reference Range:

    Not detected

    Interpretive Data:
    The quantitative range of this assay is 1.3-8.2 log IU/mL (20-170,000,000 IU/mL).
    1 IU/mL of HBV DNA is approximately 5.82 copies/mL

    This assay should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular Tissue-Based Products (HCT/P).

    Note:
    The limit of quantification for this DNA assay is 1.3 log IU/mL (20 IU/mL). If the assay DID NOT DETECT the virus, the test result will be reported as "<1.3 log IU/mL (<20 IU/mL)." If the assay DETECTED the presence of the virus but was not able to accurately quantify the number of IU the test result will be reported as "Not Quantified."

    Specimens received with less than minimum volume for testing will automatically be run with a dilution according to the guidelines below:
    -Specimens with 325-650 µL will be diluted resulting in a modification of the quantitative range of the assay to 1.6-8.5 log IU/mL (41-350,000,000 IU/mL).
    -Specimens with 130-325 µL will be diluted resulting in a modification of the quantitative range of the assay to 2.0-8.9 log IU/mL (102-870,000,000 IU/mL).

    This test is intended for use in conjunction with clinical presentation and other laboratory markers as an indicator of disease prognosis. This test is also used as an aid in accessing viral response to treatment as measured by changes in HBV DNA levels.

  • Day Run:
    Sun-Sat (daily)
  • Time Reported:
    3-5 days
  • Test Type:
    INFECTIOUS ORGANISM

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