COVID-19 IgG Antibody, Serum (Blood Test)

COVID-19 IgG Antibody, Serum (Blood Test)

Do you think you’ve already had COVID-19? You can now request the test that determines if you have had it. Glendive Medical Center is now offering the SARS-CoV-2 IgG Antibody Serum Blood Test. We have outlined the basic FAQs with answers for this test below:

What is the purpose of the test?

This test is intended for use as an aid in identifying individuals with an adaptive immune response to SARS-CoV-2, indicating recent or prior infection.

Any limitations on who can get it?

Testing is only recommended in individuals at least 10 days post-symptom onset or following exposure to individuals with confirmed COVID-19. For 24 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins.

How do I sign up for it?
No appointment needed. If you have any questions, you may call the Lab at 406-345-3370.

Where to get the test?
Blood will be collected for this test in the entrance of Gabert Clinic between 8am – 11am, Monday through Friday and the Lab between 11am-5pm, Monday through Friday.

How much does it cost?
$75.00 or if you have a doctor’s order we can bill your insurance. A doctor’s order is not mandatory for the test, however.

How long does it take to get results?

Test results available within 5 business days (they may take longer if sending out on Thursday or Friday due to the weekend).

Are you immune if the test is positive?

This status is still unknown. The immune response, including duration of immunity, to SARS-CoV-2 infection is not yet understood.

For up-to-date information about this question please check out the CDC’s website:

Is there any follow-up required?

No follow up is needed, however, all tests are reported to the State and Local County Health.

Test Interpretations

  • Negative Result: No IgG antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) detected. Negative results may occur in serum collected too soon following infection, in immunosuppressed patients, or in some individuals with prior mild illness. Follow-up testing with a molecular test is recommended in symptomatic patients. This test should not be used to exclude active/recent coronavirus disease 2019 (COVID-19).
  • Positive Result: SARS-CoV-2 IgG antibodies detected. Results suggest recent or prior infection with SARS-CoV-2. Correlation with epidemiologic risk factors and other clinical and laboratory findings is recommended. Serologic results should not be used to diagnose recent SARS-CoV-2 infection. Protective immunity cannot be inferred based on these results alone. Infrequently, false-positive results may be due to prior infection with other human coronaviruses.
    PLEASE NOTE: If you receive a positive test result, it is important to continue to practice social distancing guidelines! The immune response, including duration of immunity, to SARS-CoV-2 infection is not yet understood.

Click here to download this information.