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Test Name:
Phosphatidylglycerol IgA, IgG, and IgM Antibodies


  • SBMF No:
    45395
  • Performance Lab Name:
    ARUP Laboratories
  • Test Mnemonic:
    PHOSGLYPAN
  • CPT Code:
    83516x3
  • Ref Lab Test No:
    0051623
  • Also Known As:
    aPG Antibodies
  • Spec Collect:
    Gold top (SST) or Red top (serum) tube. Mix by inverting tube 5 times.
  • Spec Process:
    Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL)
  • Spec Store Transport:
    Refrigerated.
  • Spec Stability:
    After separation from cells:
    Room temperature: 48 hours
    Refrigerated: 2 weeks
    Frozen: 1 year
  • Spec Reject:
    Plasma or other body fluids. Contaminated, heat-inactivated, hemolyzed, icteric, or lipemic specimens.
  • Methodology:
    Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)
  • Reference Range:

    Phosphatidylglycerol IgA Antibody
    0-11 U/mL: Normal
    12-18 U/mL: Equivocal. Suggest repeat testing in 4-6 weeks or consider antibody testing for cardiolipin IgG and IgM, beta-2 glycoprotein 1 IgG and IgM and lupus anticoagulant.
    19 U/mL or greater: Positive

    Phosphatidylglycerol IgG Antibody
    0-11 U/mL: Normal
    12-18 U/mL: Equivocal. Suggest repeat testing in 4-6 weeks or consider antibody testing for cardiolipin IgG and IgM, beta-2 glycoprotein 1 IgG and IgM and lupus anticoagulant.
    19 U/mL or greater: Positive

    Phosphatidylglycerol IgM Antibody
    0-11 U/mL: Normal
    12-18 U/mL: Equivocal. Suggest repeat testing in 4-6 weeks or consider antibody testing for cardiolipin IgG and IgM, beta-2 glycoprotein 1 IgG and IgM and lupus anticoagulant.
    19 U/mL or greater: Positive

    Interpretive Data:
    This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

  • Additional Test Info:

    Lab Tests Online: A public resource on clinical lab testing from the laboratory professionals who do the testing

    ARUP Consult | The Physician's Guide to Laboratory Test Selection and Interpretation

    Online LIS Test Build Information is not available for this test. For a complete test mix, contact interface support at ITDMUS@sbmf.org.

  • Day Run:
    Tue, Thu, Sun
  • Time Reported:
    2-5 days
  • Test Type:
    IMMUNOLOGY