COVID-19 Antibody Test

The COVID-19 antibody test checks for the immunoglobulin G (IgG) antibody for the novel coronavirus.


The Coronavirus (COVID-19) does not discriminate. It is highly contagious and EVERYONE is at risk.

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About the COVID-19 Antibody Test

We’re currently offering the antibody test from Quest Diagnostics.

Quest did their research before making this test available. They re-validated the test to make sure it meets Quest’s high-quality standards. Click here to find out.

Why order the COVID-19 Antibody Test?

  • If you were never diagnosed with novel coronavirus, the COVID-19 antibody test can help determine if you may have been previously exposed to the virus.
  • If you were diagnosed with COVID-19, this test can check whether or not your body has produced antibodies.
  • The Red Cross and other blood banks are collecting blood donations to potentially help in the treatment of infected individuals.

Flatten the Curve

The COVID-19 Antibody Test, also known as a serology test, may help identify if you were previously exposed to the virus. Currently, the FDA allows antibody testing with the following important clarifications:

Frequently Asked Questions

  • Fever
  • Cough
  • Shortness of breath
  • Chills
  • Shaking with chills
  • Loss of taste or smell
  • Muscle pain
  • Headache
  • Sore throat

IgG antibodies are believed to appear 3-4 weeks after infection.

When IgG antibodies are present, it often indicates a past infection but does not exclude recently infected patients who are still contagious. It is unknown how long  IgG antibodies to SARS-CoV-2 will remain present in the body after infection and if they confer immunity to infection.

According to the Centers for Disease Control and Prevention, “Serologic test results have limitations that make them less than ideal tools for diagnosing people who are sick.”

Different Testing Types

Antibodies PCR
Antibody or Serology tests are blood tests to detect antibodies. Antibodies are what a body produces in response to an antigen (or “invader”). Since there is no vaccine for this virus, antibodies indicate past exposure to the virus. The PCR test is a test for current infection (the nasal swab). If you have symptoms, you should have this test, not the antibody test. InOut Labs will soon offer the PCR test for asymptomatic individuals only.
Rapid Test Lab Test
Rapid tests provide a result in about 15 minutes. On 5/4/20, the FDA stated that a rapid COVID-19 antibody test may only be conducted by a laboratory. Not at home. Not even in a doctor’s office. The COVID-19 Lab Antibody Test is what it sounds like. It’s a blood draw from your arm that is sent to a certified laboratory for testing on calibrated equipment. It’s more thorough than a rapid and results can take one to three days.

Important Information

What Does the FDA Have To Say About These Tests?

In its revised publication  “Policy for Coronavirus Disease-2019 Tests During the Public Health Emergency (Revised),”  issued on web 5/4/2020, please note the following requirements (actual verbiage from guidance document):

In order to provide important information about the intended use of the test and its limitations, FDA recommends that instructions for use and patient test reports include information that helps users and patients understand the test results, such as the following:

  • This test has not been reviewed by the FDA.
    Negative results do not preclude acute SARS-CoV-2 infection. If acute infection is suspected, direct testing for SARS-CoV-2 is necessary.
  • Results from antibody testing should not be used to diagnose or exclude acute SARSCoV-2 infection.
  • Positive results may be due to past or present infection with non-SARS-CoV-2 coronavirus strains, such as coronavirus HKU1, NL63, OC43, or 229E.

The FDA continues to update its guidance in its FAQ section. It is important to check their website daily for latest updates: