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Test #


Test CPT Codes

86769 x3

COVID-19 Immune Index™ - IgG, IgM, IgA Antibody Testing by CLIA Correlated with Virus Neutralization

Test Type

Diagnostic Immunology

Test Disease / Components

COVID-19 Infection

Test Technology

Chemiluminescent Immunoassay (CLIA)

Clinical Utility


Test Specimen

Dried Blood Spot (DBS):

  • Dried blood spots collected and dried on an appropriate DBS card

  • Fill circles completely and evenly to the outer edge

  • Reverse side should look similar to the front

  • Dry the DBS card for at least 1 hour prior to packaging for shipping


  • Serum Separator Tube preferred

  • Absolute minimum volume: 1mL

About This Test

Positive results to antibodies against SARS-CoV-2 are generally indicative of an individual’s current or prior infection with the COVID-19 virus, however, the duration of these antibodies remaining in circulation has not yet been established. These test results should always be considered in the context of a patient’s clinical history, physical examination, epidemiologic exposures and vaccination history before making the final diagnosis.

  • IgM isotype antibodies develop within 5 to 7 days and indicates recent infection.

  • IgG isotype antibodies develop after 10 days and remain in circulation longer. It may indicate past infection or vaccine mediated immune response.

  • IgA isotype antibody development is variable in its response and may indicate It may indicate past infection or vaccine mediated immune response.

Storage and Stability

Turnaround Time (TAT)

≤ 2 days

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