SARS-CoV-2 Antibody (IgG), Spike, Semi-Quantitative

This test may be used to detect an immune response to a prior or recent infection with SARS-CoV-2, or may indicate antibodies to a spike-targeted vaccine. Your body produces antibodies as part of your immune response after exposure to the virus or vaccination. The test provides a numerical value that indicates whether or not you may have antibodies to COVID-19. This test should not be used to determine the level of immunity you have. Patient service centers are collecting samples in accordance to the health and safety guidelines from the Centers for Disease Control and Prevention (CDC.) To get tested you must:

Complete the eligibilty screening questionnaire
Be asymptomatic for at least 10 days prior to testing
Not have a fever (will be confirmed by non-contact thermometer)
Wear a face mask during visit to patient service center
Schedule an appointment prior to visiting the laboratory

This test has been authorized by the FDA under an Emergency Use Authorization (EUA) for use by authorized laboratories. Negative results do not rule out SARS-CoV-2 infection, particularly in those who have been in contact with the virus. Follow-up testing with a molecular diagnostic should be considered to rule out infection in these individuals. 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. Results from antibody testing should not be used as the sole basis to diagnose or exclude SARS-CoV-2 infection or to inform infection status.

After you receive your results, you will have an opportunity to have a telehealth consult with an independent licensed physician or other licenced healthcare provider from PWNHealth, who can answer any questions you may have about your test results and help determine next steps.

It usually takes at least 10 days after symptom onset for IgG antibodies to reach detectable levels.

Test results may take 5-7 business days once the laboratory has received the specimen. This test can not be ordered in combination with any other test. It must be purchased separately.

Sample Results

SARS-CoV-2 Antibody (IgG), Spike, Semi-Quantitative

$129
Quest

Sample Results

Test Details

Testing by CLIA approved lab: Quest Diagnostics

Positive antibody results could be associated with past or present infection. False positives could be a result of other (non-SARS-CoV-2) coronavirus strains.

Negative results: This means that antibodies were not detected in the specimen you provided. For semi-quantitative antibody tests, any value less than 1.00 U/mL (< 1.00 U/mL) indicates a negative result. The results suggest that you were not exposed to SARS-CoV-2, or have not developed antibodies after infection or vaccination. If you were recently diagnosed with COVID-19, were exposed to someone with COVID-19, or previously had symptoms of COVID-19, there is a possibility of a false negative. If you test too soon, your body may not have produced enough antibodies to be detected by the test yet. If that is the case, retesting may be needed. A negative result could also mean that your antibody levels have declined if you were exposed in the past.

Positive results: This means that antibodies were detected in the specimen you provided. For semi-quantitavie antibody tests, a value of 1.00 U/mL or higher (>1.00 U/mL) indicates a positive result. Antibodies typically suggest a protective immunity from further infection. However, evidence is still being collected to determine if antibodies provide protective immunity against SARS-CoV-2 (COVID-19) specifically. 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.

Indeterminate results: This means that the test was unable to confirm the detection of antibodies in the specimen you provided. This is neither a positive or negative result and retesting is needed to confirm whether or not you have antibodies in the blood. Indeterminate results may occur when you do not have enough antibodies for the test to detect, such as testing too soon after being infected.

Test Not Performed (TNP) results: This means that the test was unable to be performed. This result may happen if there was a problem with how your specimen was collected, transported, or an issue with the sample or test itself. You will need to provide another specimen at the laboratory to have this test performed.

SARS-CoV-2 (COVID-19) antibodies are developed by one of two ways in the body, either by natural infection or vaccination. Based on current research it is reccommended to wait at least 3-4 weeks after symptom onset or known exposure to COVID-19 to test for antibodies. It is also reccommended to wait at least 3-4 weeks after your vaccination is fully completed. It is still unknown how long SARS-CoV-2 antibodies remain detectable after infection.

NOTE: The numerical value should not be used to indicate your level of immunity or degree of protection from being reinfected. If you believe you have a current infection or are experiencing any symptoms please follow up with your healthcare provider for COVID-19 PCR testing.

Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: Sep 09, 2021

Testing by CLIA approved lab: Quest Diagnostics

Positive antibody results could be associated with past or present infection. False positives could be a result of other (non-SARS-CoV-2) coronavirus strains.

Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: Sep 09, 2021

1. Purchase Tests

Choose the test you want (be sure to pick the laboratory you want to use).

Pay by credit card or PayPal^®.

You pay directly and we do not bill your insurance.

2. Visit a Lab

After purchasing your testing you will receive an email with your lab requisition. Bring this form to the laboratory.

Find Your Lab Location.

If you have selected the option to have an At Home Test Kit delivered to you, you will receive your test kit in the mail within 5 to 7 business days. (Not all tests are available as At Home Test Kits.)

3. Get Results

We’ll email you when your results are ready. Sign into your account to view and download your result reports.

Certain result values may prompt a phone call from our ordering provider to ensure the patient is aware of their result.

Sample Type

Blood

Prepare For Your Test

Complete online patient questionnaire prior to checkout

Also Known As

No other names specified

SARS-CoV-2 Antibody (IgG), Spike, Semi-Quantitative

$129
Quest