My Personal Story
I traveled home to the U.S. from Southeast Asia late January after being there for two months. The next day several people in my household fell sick with fevers and symptoms that came and went and came again. For the past four months I was completely confident I must have been an asymptomatic carrier. So I was totally surprised when my antibody test came back negative. Knowledge is power. And knowing I am negative definitely changes how I am approaching heading back into society for me and my family.
- Julie Vails, MD MBA CPE FAAFP
Do you want to know if you've been exposed or exposed others? Let's find out.
CLICK EACH QUESTION BELOW TO SEE THE ANSWER.
Antibody serology testing checks for a type of antibody called immunoglobulin G (IgG) that is the result of past or recent exposure to COVID-19, also known as the novel coronavirus. The human body produces IgG antibodies as part of the immune response to the virus. It usually takes around 10 to 18 days to produce enough antibodies to be detected in the blood.
Test results may help identify if you were previously exposed to the virus and, if exposed, whether or not your body has produced antibodies. Antibodies typically suggest protective immunity after you’ve recovered or been exposed to COVID-19. However, evidence is still being collected to determine if IgG antibodies provide protective immunity against future infection from SARS-CoV-2, the virus that causes COVID-19 infection.
Recovery from COVID-19 is typically considered after it has been at least 7 days from the start of your first symptoms, and at least 3 days without a fever, and all other symptoms have improved.
Additionally, an antibody test may be able to detect if you have already been exposed to COVID-19—even if you never experienced symptoms. Previous exposure means you may now potentially have some level of immunity to the virus.
This test may be helpful if you:
Have had a positive test for COVID-19 and it has been at least 10 days and you want to know if you have detectable levels of IgG antibodies
Have not experienced a fever or felt feverish in the last 3 days
Have not experienced new or worsening symptoms of COVID-19 in the past 10 days: loss of smell or taste, shortness of breath or difficulty breathing, feeling weak or lethargic, lightheadedness or dizziness, vomiting or diarrhea, slurred speech, and/or seizures
This test may NOT be helpful if you are:
Feeling sick or have had a fever within the last 3 full days, please contact your primary healthcare provider
Trying to diagnose COVID-19, please contact your primary healthcare provider
Less than 10 days since being tested for and diagnosed with COVID-19
Directly exposed to COVID-19 in the past 14 days
A person with a compromised immune system, a condition that makes it difficult to fight infections
COVID-19 antibody testing must be performed in a laboratory. In order to obtain a blood test, a physician must order the test and submit a requisition to the lab.
Yes, children can be tested with their parent or guardian's consent. To order a test for a child, complete the form with all of the information for the consenting adult. Let us know during the chat that you wish to transfer the order to your minor child and we'll take care of the paperwork from there.
The professional fee for the online telehealth consultation with the physician is $59 and is paid on registration. We do not bill insurance. The lab test fee is covered by insurance or is $55 at the lab if you do not have insurance.
Your insurance is billed for your Quest lab fee. If you have insurance and present it when getting your lab drawn, there are no additional fees. If you have no insurance, Quest lab charges $55. Those fees are from Quest, not CPIN and of course, are subject to change.
We order your test to be draw at Quest Diagnostic lab centers. Quest uses two serology tests found to be 99-100% accurate: Abbott Architect SARS-CoV-2 IgG (100% sensitive, 99.6% specific) and Ortho-Clinical Diagnostics VITROS Immunodiagnostic Products Anti-SARS-CoV-2 Total Reagent Pack and Calibrator (100% sensitive, 100% specific).
The United States FDA has made both tests available under an emergency access mechanism called an Emergency Use Authorization (EUA) which means the test has been evaluated in an independent validation study performed at the National Institutes of Health’s (NIH) National Cancer Institute (NCI), or by another government agency designated by FDA.
Because Quest Diagnostics is a CLIA certified "High Complexity Laboratory", they are able to administer this test.
Presence of IgG to SARS-CoV-2 indicates that you have mounted an immune response to the virus. Although the immune response may protect against reinfection, this has yet to be established. It is also not known how long antibodies to the virus will protect someone, if at all. Scientists are conducting research to answer these questions. Therefore, patients with positive IgG results should continue to take steps to protect themselves and others. Although the chance is very low, positive results may also be due to past or present infection with a non-COVID-19 coronavirus strain (such as coronavirus HKU1, NL63, OC43, or 229E).
- Recently diagnosed with COVID-19
- Exposed to someone with COVID-19
- Previously developed symptoms suggestive of COVID-19
If you test too soon, your body may not have produced enough IgG antibodies to be detected by the test yet and retesting may be needed.
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.
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. A person with a compromised immune system may not mount an adequate immune response to COVID-19 even when they have been infected.
Quest has strong safety procedures in place at all times. During the COVID-19 public health crisis, they have taken more precautions to make it easier and safer to access the testing you need from Quest.
These increased measures include:
• Providing gloves to patients to use touchscreen kiosks
• Requiring face masks for all patients and employees
• Disinfecting all surfaces more frequently
• Dedicating the first hour of each day to vulnerable patients who are 60 years of age or older, pregnant, or have underlying medical conditions
• Offering a text alert option that allows patients to wait for appointments outside
• Limiting the number of people in the waiting room
• Mandating enhanced COVID-19 safety training for employees
• Equipping employees with additional personal protective equipment
• Washing hands more frequently for at least 20 seconds
• Using a no-contact technique to check patients’ temperatures upon entry
Follow these tips when preparing for your COVID-19 immune response test at a Quest patient service center. They will help you feel safer and more comfortable.
• Sign up to pre-register when scheduling your appointment
• During check-in, request a text alert when it’s your turn, so you can wait in your car or outside in the fresh air
• Come by yourself or with just one person if you need help
• Required: Wear a face mask or covering (homemade masks are acceptable).
Patients who suspect they currently have COVID-19 SHOULD NOT go to Quest Lab.
As many as 25% of people who had COVID-19 disease were without any symptoms.
Did you know your test helps us better understand the disease for everyone.
In a letter to health care providers, the FDA recommended doctors use antibody test to help identify people who may have been exposed or have recovered from the COVID-19 infection but didn't know it.